4 Bizarre Experiments That Should Never Be Repeated

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by Megan Wilde

1. The Real World: Mental Hospital Edition

This is the true story of three schizophrenics, who all believed they were Jesus Christ. It wasn’t long before they stopped being polite and started getting real crazy. In 1959, social psychologist Milton Rokeach wanted to test the strength of self-delusion. So, he gathered three patients, all of whom identified themselves as Jesus Christ, and made them live together in the same mental hospital in Michigan for two years.

Rokeach hoped the Christs would give up their delusional identities after confronting others who claimed to be the same person. But that’s not what happened. At first, the three men quarreled constantly over who was holier. According to Rokeach, one Christ yelled, “You oughta worship me!” To which another responded, “I will not worship you! You’re a creature! You better live your own life and wake up to the facts!”

Unable to turn the other cheek, the three Christs often argued until punches were thrown. Eventually, however, they each explained away their conflicting identities. One believed, correctly, that the other two were mental patients. Another rationalized the presence of his companions by claiming that they were dead and being operated by machines.

But the behavior of the schizophrenics isn’t even the most bizarre part. Far stranger was the way Rokeach tried to manipulate his subjects.

As part of the experiment, the psychologist wanted to see just how entrenched each man’s delusions were. For example, one of the Christs, Leon, believed he was married to a person he called Madame Yeti Woman, a 7-ft.-tall, 200-lb. descendant of an Indian and a jerboa rat. So, Rokeach wrote love letters to Leon from Madame Yeti Woman. They contained instructions, requesting that Leon sing “Onward Christian Soldiers” during group meetings and smoke a certain brand of cigarettes. Leon was so touched by the attention from his make-believe wife that he broke into tears upon receiving the letters. But when the Yeti Woman asked him to change his name, Leon felt as though his identity was being challenged. He was on the verge of divorcing his fantasy spouse when Rokeach finally dropped that part of the experiment.

At the end of their two-year stay, each man still believed he was the one and only son of God. In fact, Rokeach concluded that their Jesus identities may have become more embedded after being confronted with other Christs. Twenty years later, he renounced his methods, writing, “I really had no right, even in the name of science, to play God and interfere around the clock with their daily lives.”

2. Raging Bull

In 1963, Dr. Jose Delgado stepped into a bullring in Cordova, Spain, with a 550-lb. charging bull named Lucero. The Yale University neurophysiologist was no bullfighter, but he had a plan: to control the bull’s mind.

Delgado was among a small group of researchers developing a new type of electroshock therapy. Here’s how it worked: First, the researchers would implant tiny wires and electrodes into the skull. Then, they’d send electrical surges to different parts of the brain, sparking emotions and triggering movements in the body. The goal was to change the patient’s mental state, perking up the depressed and calming the agitated. But Delgado took this science to a new level when he developed the “stimoceiver.” The chip, which was about the size of a quarter, could be inserted inside a patient’s head and operated by remote control. Delgado envisioned the technology eventually leading to a “psychocivilized society,” in which everyone could temper their self-destructive tendencies at the press of a button.

For several years, Delgado experimented on monkeys and cats, making them yawn, fight, play, mate, and sleep—all by remote control. He was particularly interested in managing anger. In one experiment, he implanted a stimoceiver into a hostile monkey. Delgado gave the remote control to the monkey’s cage mate, who quickly figured out that pressing the button calmed down his hotheaded friend.

Delgado’s next challenge was to experiment with bulls in Spain. He began by implanting stimoceivers into several bulls and testing the equipment by making them lift their legs, turn their heads, walk in circles, and moo 100 times in a row. Then came the moment of truth. In 1965, Delgado entered the ring with a fighting bull named Lucero—a ferocious animal famous for his temper. When Lucero barreled towards him, Delgado tapped his remote control and brought the animal to a screeching halt. He tapped his remote control again, and the bull started wandering in circles.

The demonstration was hailed as a success on the front page of The New York Times, but some neuroscientists were skeptical. They suggested that, rather than quelling Lucero’s aggression, Delgado had simply confused the bull by shocking his brain and prompting him to give up his attack. Meanwhile, total strangers began accusing Delgado of secretly implanting stimoceivers into their brains and controlling their thoughts. As public fear of mind-control technology increased during the 1970s, Delgado decided to return to Spain and conduct less-controversial research. But his work on electrical brain stimulation was groundbreaking. It paved the way for present-day neural implants, which help patients manage conditions ranging from Parkinson’s disease and epilepsy to depression and chronic pain.

3. Alone in the Dark

For some people, solitary confinement is a punishment; for others, it’s a pathway to scientific discovery. In the 1960s, at the peak of the Space Race, scientists were curious how humans would handle traveling in space and living in fallout shelters. Could people cope with extreme isolation in a confined space? Without the Sun, what would our sleep cycles be like? Michel Siffre, a 23-year-old French geologist, decided to answer these Cold War questions by conducting an experiment on himself. For two months in 1962, Siffre lived in total isolation, buried 375 feet inside a subterranean glacier in the French-Italian Maritime Alps, with no clocks or daylight to mark time.

Inside the cave, temperatures were below freezing, with 98 percent humidity. Constantly cold and wet, Siffre suffered from hypothermia, as massive chunks of ice regularly crashed down around his tent. But during his 63 days underground, he only dabbled in madness once. One day, Siffre started singing at the top of his lungs and dancing the twist in his black silk tights. Other than that, he behaved relatively normally.

When Siffre emerged on September 14, he thought it was August 20. His mind had lost track of time, but, oddly enough, his body had not. While in the cave, Siffre telephoned his research assistants every time he woke up, ate, and went to sleep. As it turns out, he’d unintentionally kept regular cycles of sleeping and waking. An average day for Siffre lasted a little more than 24 hours. Humans beings, Siffre discovered, have internal clocks.

The experiment’s success made Siffre eager to conduct more research. Ten years later, he descended into a cave near Del Rio, Texas, for a six-month, NASA-sponsored experiment. Compared to his previous isolation experience, the cave in Texas was warm and luxurious. His biggest source of discomfort were the electrodes attached to his head, which were meant to monitor his heart, brain, and muscle activity. But he got used to them, and the first two months in the cave were easy for Siffre. He ran experiments, listened to records, explored the cavern, and caught up on his Plato.

On day 79, however, his sanity started to crack. He became extremely depressed, especially after his record player broke and mildew began ruining his magazines, books, and scientific equipment. Soon, he was pondering suicide. For a while, he found solace in the companionship of a mouse that occasionally rummaged through his supplies. But when Siffre tried to trap the mouse with a casserole dish to make it his pet, he accidentally crushed and killed it. He wrote in his journal, “Desolation overwhelms me.”

Just when the experiment was nearing its end, a lightning storm sent a shock of electricity through the electrodes on his head. Although the pain was excruciating, depression had so dulled his mind that he was shocked three more times before he thought to disconnect the wires.

Yet again, the Texas cave experiment yielded interesting results. For the first month, Siffre had fallen into regular sleep-wake cycles that were slightly longer than 24 hours. But after that, his cycles began varying randomly, ranging from 18 to 52 hours. It was an important finding that fueled interest in ways to induce longer sleep-wake cycles in humans—something that could potentially benefit soldiers, submariners, and astronauts.

4. For the Love of Dolphins

Perhaps the most troubling experiment in recent history is the dolphin-intelligence study conducted by neuroscientist John C. Lilly in 1958. While working at the Communication Research Institute, a state-of-the-art laboratory in the Virgin Islands, Lilly wanted to find out if dolphins could talk to people. At the time, the dominant theory of human language development posited that children learn to talk through constant, close contact with their mothers. So, Lilly tried to apply the same idea to dolphins.

For 10 weeks in 1965, Lilly’s young, female research associate, Margaret Howe, lived with a dolphin named Peter. The two shared a partially flooded, two-room house. The water was just shallow enough for Margaret to wade through the rooms and just deep enough for Peter to swim. Margaret and Peter were constantly interacting with each other, eating, sleeping, working, and playing together. Margaret slept on a bed soaked in saltwater and worked on a floating desk, so that her dolphin roommate could interrupt her whenever he wanted. She also spent hours playing ball with Peter, encouraging his more “humanoid” noises and trying to teach him simple words.

As time passed, it became clear that Peter didn’t want a mom; he wanted a girlfriend. The dolphin became uninterested in his lessons, and he started wooing Margaret by nibbling at her feet and legs. When his advances weren’t reciprocated, Peter got violent. He started using his nose and flippers to hit Margaret’s shins, which quickly became bruised. For a while, she wore rubber boots and carried a broom to fight off Peter’s advances. When that didn’t work, she started sending him out for conjugal visits with other dolphins. But the research team grew worried that if Peter spent too much time with his kind, he’d forget what he’d learned about being human.

Before long, Peter was back in the house with Margaret, still attempting to woo her. But this time, he changed his tactics. Instead of biting his lady friend, he started courting her by gently rubbing his teeth up and down her leg and showing off his genitals. Shockingly, this final strategy worked, and Margaret began rubbing the dolphin’s erection. Unsurprisingly, he became a lot more cooperative with his language lessons.

Discovering that a human could satisfy a dolphin’s sexual needs was the experiment’s biggest interspecies breakthrough. Dr. Lilly still believed that dolphins could learn to talk if given enough time, and he hoped to conduct a year-long study with Margaret and another dolphin. When the plans turned out to be too expensive, Lilly tried to get the dolphins to talk another way—by giving them LSD. And although Lilly reported that they all had “very good trips,” the scientist’s reputation in the academic community deteriorated. Before long, he’d lost federal funding for his research.

40 Facts About Friends for Its 25th Anniversary

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Twenty-five years ago—on September 22, 1994—Friends made its NBC debut and forever changed the face of American sitcoms. In addition to turning its six stars—Jennifer Aniston, Courteney Cox, Lisa Kudrow, Matt LeBlanc, Matthew Perry, and David Schwimmer—into household names (and eventually some of the highest-paid actors in television history), the series actually helped to get Mental Floss off the ground (more on that later). Here's a look back at the series that is still one of the most streamed shows in Netflix's library.

1. Friends was originally called Insomnia Café (and a bunch of other things).

Cast members of NBC's comedy series 'Friends.' Pictured (l to r): Matt LeBlanc as Joey Tribbiani, David Schwimmer as Ross Geller, Matthew Perry as Chandler Bing, Courteney Cox as Monica Geller and Lisa Kudrow as Phoebe Buffay. Episode: 'The One Where They
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In the early 1990s, Friends co-creators David Crane and Marta Kauffman wrote a seven-page pitch for a new sitcom titled Insomnia Café. In addition to the different title, the plot itself was quite different from what came to be known as Friends. For example, Ross and Rachel weren't the key relationship; instead, Joey and Monica were supposed to be love interests.

After NBC bought the pilot, the title became Friends Like Us. NBC president Warren Littlefield came up with another title that was also considered, Across the Hall. By the time they shot it, the title had switched again to Six of One. When the show premiered on September 22, 1994, they had finally landed on simply Friends.

2. The cast could have been completely different.

The cast of 'Friends.' Clockwise from top left: Matt LeBlanc, David Schwimmer, Matthew Perry, Courteney Cox, Lisa Kudrow & Jennifer Aniston
Hulton Archive/Getty Images

With a cast of six people, it’s not a surprise that many different actors were considered for each role. For example, Kathy Griffin and Jane Lynch actually became friends after meeting while both were auditioning for the part of Phoebe.

Both Jon Favreau and Jon Cryer were considered for the role of Chandler before it went to Matthew Perry, but Perry almost didn’t get the gig either. During the 1994 pilot season, he filmed the pilot for a show called LAX 2194 in addition to Friends. The show would have been about baggage handlers at LAX who sorted aliens’ luggage. Thankfully, it wasn’t picked up, and Perry was able to take the Friends gig.

3. The producers wanted Courteney Cox to play Rachel, but cox resisted.

Before the show premiered, Courteney Cox was probably the most famous cast member. She was known for many commercials plus Bruce Springsteen’s “Dancing in the Dark” music video. The Friends producers originally asked her to play Rachel, but she requested the role of Monica because she liked the “strong” character.

4. The role of Ross Geller was written for David Schwimmer.

This may come as a surprise because Eric McCormack (best known as Will of Will & Grace) made news when he said that he auditioned “two or three times” for Ross. But, executive producer Kevin Bright had worked with Schwimmer before, so the writers were already developing Ross’s character in Schwimmer’s voice. And indeed, Schwimmer was the first person cast on the show.

5. The opening credits were not shot in New York.

Don’t let your New York City tour guide trick you into thinking that you’re looking at the fountain from the iconic opening credits of Friends—unless you’ve brought your tour guide with you to Burbank for some reason. Although the fountain looks a lot like Central Park's Pulitzer Fountain, the actual shoot occurred on a Warner Bros. lot.

6. The cast took a trip to Las Vegas together before the show aired.

Director James Burrows, who went on to direct a handful of episodes for the show between 1995 and 1997, brought the six cast members to Vegas because he “had a feeling about the show.” While they were at Caesar’s Palace, he encouraged the group to enjoy themselves. “This is your last shot at anonymity,” Burrows told them. “Once the show comes on the air, you guys will never be able to go anywhere without being hounded.”

7. Caesar's Palace played an important role on Friends later on.

Caesar's Palace played a key role in the fictional world of Friends as well. In "The One in Vegas," the season 5 finale, Joey is seen playing a gladiator at the Vegas hotel. This is, of course, the same episode where Ross and Rachel get married in a drunk stupor and come stumbling out of a Vegas chapel while Monica and Chandler, who were about to get married, look on.

8. Monica was an early Mental Floss fan.


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In the 2003 episode "The One With the Soap Opera Party," Monica is shown casually reading a new magazine called Mental Floss while hanging out at Central Perk. We really owe David Arquette a lifetime of gratitude because he's the one who made it happen. "I thought it was so interesting," Arquette told Entertainment Weekly at the time, "[so] I gave it to Courteney" for the show.

9. Lisa Kudrow didn't know how to play guitar.

"I didn’t like the guitar," Lisa Kudrow admitted about Phoebe Buffay's chosen musical instrument. "I wasn’t getting it. So I think I even asked, ‘What if she plays the bongos?'" They ended up bringing a guitar teacher in, but that didn’t last long. Kudrow learned a couple of chords, then announced that she was done with the lessons. She decided that Phoebe would only know a handful of chords anyway. And thank goodness because “Smelly Cat” is perfect just the way it is.

10. Friends was filmed in front of a live audience—except for cliffhangers.

Shooting an episode of Friends was a lengthy process, typically lasting five hours, with multiple takes per scene and 20 minutes between scenes to change sets. Still, the show was filmed in front of a live audience made up of 300 fans. And that’s the way the cast preferred it. “It’s kind of like a test to see if the material works, if the jokes work, if the story tracks,” LeBlanc said. Perry agreed, “Our energy just elevates every time there’s an audience.”

So, what wasn’t filmed in front of a live audience? One example is the cliffhanger in the season four finale, “The One With Ross’s Wedding.” At the end of the episode, Ross is about to marry Emily, but accidentally says Rachel’s name at the altar. “We couldn’t have an audience for that,” Aniston said. “We always remove the audience for the cliffhangers because, obvious reasons, you don’t want to spoil it.”

11. Many people, including Lisa Kudrow, thought that Chandler was gay.


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Kudrow said that she was surprised to hear Perry’s interpretation of Chandler at the first table read because when she first read the script, she thought Chandler was supposed to be gay. And she wasn’t the only one. During the first few seasons of the show, many fans speculated about Chandler’s sexual orientation. In 1997, David Crane told Entertainment Weekly, “No, Chandler isn’t gay. Nor will he be gay.”

12. They were the first TV cast to negotiate as a group.

During the first season, each cast member was receiving around $22,000 per episode. But allegedly, by the second season, each actor had a slightly different salary. In 1997, all six cast members refused to work until they all earned an equal salary of $100,000 per episode. This was big news. “Stars of hit shows often threaten to boycott their series in pursuit of higher salaries," The New York Times reported. "What is unusual is this cast’s effort to use solidarity as leverage."

This negotiation worked very well. By the final season, each cast member was earning $1 million per episode.

13. Phoebe Buffay’s twin sister, Ursula, was also a character on Mad About You.

Kudrow was already playing Ursula the waitress on Mad About You when she was cast on Friends. NBC and Mad About You encouraged Kudrow to take both roles. According to her, it was the producers of Friends who decided to “address this and say they're twin sisters.” She went on to play Ursula Buffay in eight episodes of Friends as well.

14. The apartment numbers switched during the series.

At the beginning of the series, Monica’s door had the number 5 on it. The producers later realized that didn’t make sense as Monica lived on a higher floor. They changed her apartment number to 20. The number on Chandler’s apartment changed as well—from 4 to 19.

15. There was a connection between Friends and Home Alone.

In 2016, the folks at 22 Vision shared a video documenting a previously unrealized connection between Friends and 1990's Home Alone. It turns out that Monica and Chandler may have bought the house owned by the McCallisters in the movie. How is that possible? With the help of some Hollywood trickery.

16. Kudrow’s pregnancy was written into the show, but Cox’s was not.

Kudrow got pregnant with her son, Julian Murray, in 1997. Kudrow was dubious about Phoebe getting pregnant, too, but the writers decided to have Phoebe act as a surrogate for her brother’s triplets. On the other hand, in the final season, Cox was pregnant with her daughter, Coco Arquette. This was not written into the show for an obvious reason: the series had already established that Chandler and Monica couldn’t have kids. So, they hid Cox’s pregnancy to the best of their abilities with costumes and props.

17. Joey’s Magna Doodle art became a job for the crew.

Over the years, a few crew members were responsible for drawing on the Magna Doodle on Joey’s door. But in the later seasons, it was primarily a job for Paul Swain, who was the best boy on the electric crew.

The Magna Doodle became one of the show’s stars. It sat right in the middle of Joey’s door, so whenever a character walked through that door, the Magna Doodle was prominently displayed. Fans became obsessed with the drawings. Swain said, “They were looking for hidden meanings being given through the Magna Doodle.”

18. Matt LeBlanc took the Magna Doodle.

Unsurprisingly, LeBlanc had a soft spot for the Magna Doodle, too—and actually took it with him when the series ended. (He took the foosball table, too.) It even found a second life on his short-lived Friends spinoff, Joey.

19. The actors didn’t always play well with animals.

It was widely publicized that Kudrow was afraid of the duck who made an appearance in season three. Before that, Ross had a pet monkey, Marcel, who was actually played by two monkeys: Monkey and Katie. Marcel was written out of the show in season two because it became too time-consuming to shoot scenes with a monkey. According to Katie’s trainer, Nerissa Politzer, Monkey was once supposed to pick up a bra, but ended up throwing it at Aniston instead. There’s a fun blooper (at about the 6:20 mark above) in which Rachel is trying to explain a TV show to Marcel, but it doesn’t go so well.

20. The cast had a huddle before every episode.

Every week before filming commenced, the cast would get together for a moment to prepare for the show. This was the moment that Schwimmer was dreading before the finale because he knew it would make him emotional. “I started to lose it in this ritual that we had before the show," he said, "which is just a group hug, kind of get in a little circle, right before we come out. And that was the moment I was dreading for a long time because I knew that moment of just looking at everyone in their eyes, and saying ‘Have a good show,’ and knowing that was the last time we were going to be able to be in our little circle.”

21. For the opening credits in “The One After Vegas,” everyone was given the last name “Arquette.”

This episode was the sixth season premiere. It was also the first episode after Courteney Cox married David Arquette. In the credits, her name was switched to “Courteney Cox Arquette” and the other cast members followed suit with new names like “Jennifer Aniston Arquette,” “Lisa Kudrow Arquette,” and so on. You can see the credits above. The episode is dedicated: “For Courteney and David, who did get married.” (The couple divorced in 2013.)

22. Cox and Matthew Perry confronted Judd Nelson on a nearby soundstage about an on-set bet.

While promoting the show on The Tonight Show with Jay Leno, Cox told the story of an elaborate bet between her and Perry that later involved the major '80s star.

“One day I was on the set, and I was sitting around, reciting this line, like, doing this imitation of Anthony Michael Hall,” she told Leno. “He has this line in a movie. The line is, ‘Chicks cannot hold their smoke, that’s what it is.’ And Matthew Perry walks over to me and very adamantly says, ‘Oh, Weird Science.’ And I said, ‘No, Matthew, that’s The Breakfast Club.’ And he was 100 percent sure that it was Weird Science and I was 100 percent sure it was The Breakfast Club.”

More and more crew members got involved in the debate and the stakes kept rising. “We realized that Judd Nelson was over on stage 29, doing Suddenly Susan,” said Cox. “So, we ran over there and found out that yes, indeed, it was The Breakfast Club.” As for the bet, once Cox finishes telling her story to Leno, she rings a bell and Perry brings her a tissue. She tells Leno that Perry has five more months of being her “man slave.”

23. For “The One with the Dollhouse,” the props department had to make SIX different cardboard dollhouses.

In the season three episode, Phoebe makes a dollhouse out of cardboard. But the dollhouse ends up catching on fire, which meant six identical ones had to be created from scratch. And in true television deadline fashion, they were put together in three days. The Friends props master, Marjorie Coster, described it as the “pièce de résistance” of the department.

24. In “The One Where Old Yeller Dies,” a few takes were messed up thanks to a chatty kid.

The plot of the episode is that Rachel hears the first word of Ross’s son, Ben. Ross is desperate to hear Ben talk again and spends the rest of the episode trying to get his son to talk. In one scene, Ross says, “It’s Ben and his Dada. Dada. Can you say ‘Dada’?” He’s supposed to be met with silence, but the child actor kept actually responding, “Dada.” Later in the series, Ben was played by Cole Sprouse, who would go on to star with his twin brother in the Disney Channel show The Suite Life with Zack & Cody.

In 2001, two of these bloopers were released on Late Night With Conan O’Brien. You can see them here (at 9:30).

25. Matthew Perry struggled with addiction during production.


Brenda Chase / Getty Images

In 1997, Perry went to rehab for an addiction to prescription drugs and alcohol. He went again in 2001. He later told People, “I was never high at work. I was painfully hung over. Then eventually things got so bad I couldn’t hide it and everybody knew.”

26. Matt LeBlanc spent several years hiding from his Friends fame.

In a 2016 interview with The Mirror, LeBlanc talked about the dark side of fame. "For years and years, I barely left the house. I was burnt out," LeBlanc said. "I wanted to not have a schedule, not be somewhere. I was in a position to do that. My agent was bummed. Most actors call their agents and say, 'What’s going on?'. I’d call mine and say, 'Please lose my number for a few years.' It was a very dark time. I almost had a nervous breakdown."

27. David Schwimmer had trouble dealing with his immediate fame, too.

LeBlanc wasn't the only cast member to struggle with the newfound fame that Friends brought to the cast. "It was pretty jarring and it messed with my relationship to other people in a way that took years, I think, for me to adjust to and become comfortable with," Schwimmer said during an appearance on The Hollywood Reporter's "Awards Chatter" podcast.

28. Jennifer Aniston almost didn’t return for the last season.

By the time the show ended, Aniston was arguably the most famous cast member thanks to films like The Good Girl and Bruce Almighty. Her then-husband, Brad Pitt, didn’t hurt her celebrity status either. With that fame came the rumors that she was almost responsible for the show ending prematurely. In a 2004 interview, Aniston admitted that she had hesitations. “I had a couple issues that I was dealing with,” she said. “I wanted it to end when people still loved us and we were on a high. And then I was also feeling like, ‘How much more of Rachel do I have in me?’” She eventually agreed to the final season.

29. There are Central Perk cafes based on the famous coffeehouse from the show.

While there isn’t an actual Central Perk in New York City, the fictional cafe has inspired some real ones. In 2010, Friends fan Du Xin opened a Central Perk replica in downtown Beijing, which became extremely popular. Its success meant that Du Xin could later afford to reproduce Joey’s apartment next door. In 2012, another Central Perk popped up in Liverpool.

30. Bruce Willis appeared on the show for free after losing a bet to Perry.

Apparently Perry was quite the gambler. He got into a debate with Willis while the two were making The Whole Nine Yards. Perry believed that the film would be number one in the box office on its opening weekend, but Willis disagreed. In February 2000, the film was number one. Willis was set to appear on Friends as the dad of Ross’s girlfriend and Rachel’s love interest. As a result of the bet, he had to donate his earnings for the guest stint to charity.

31. It featured a lot of future stars.

Actors Matt LeBlanc as Joey Tribbiani, Kristin Davis as Erin star in NBC's comedy series 'Friends' episode 'The One With Ross's Library Book.'
Warner Bros. Television/Getty Images

In addition to making household names of its main cast members, Friends gave an early start to several soon-to-be stars as well. Among the now-familiar faces you might see if you rewatch the series, including Grey's Anatomy star Ellen Pompeo, Melora Hardin and Craig Robinson from The Office, and Riverdale's Cole Sprouse.

32. Fans have concocted a lot of bizarre theories about the show.

Did the entirety of Friends take place in Rachel's dream? Or in Phoebe's hallucinatory mind? Over the years, fans of the show have come up with a host of theories to explain particular aspects of the show—and some of them are pretty bizarre.

33. James Michael Tyler was working as a barista when he was cast as Gunther.

In 2014, James Michael Tyler—the actor who played Central Perk's Gunther—told BuzzFeed that he was working as a barista in real life when he was cast on the show. "I had a job at a coffee shop called The Bourgeois Pig in Hollywood, which is still around and one of the last independent coffee shops that hasn't been taken over or whatnot. I was one of their first baristas—I think I started there in 1990 or so."

34. Gunther's bleached hair was accidental.

"I had a friend who wanted to be a hairdresser and wanted to practice bleaching someone's hair, so I offered what hair I had left at the time," Tyler told BuzzFeed. "It came out white and that was the night before I was called in for the first day of shooting the first season." As he was originally hired as a background actor, just to give the Central Perk set some authenticity, it didn't seem like a big deal ... until his role became a recurring one.

"I bleached my hair every week for 10 years," Tyler said. "I did it myself after a while. It was just easier instead of coming in early to do it. I would just do it the night before."

35. It's one of the most watched shows on Netflix.

Decades after its premiere, Friends still maintains a massive fan base. In the UK, it's the most streamed series on Netflix, and it holds the number 2 spot in America (only The Office gets more viewers). In late 2018, when Netflix announced that the series would be leaving the service on January 1, 2019, fans revolted; a Change.org petition to bring the show back was launched and #Justice4Friends became a trending password. Amazingly, it worked!

36. British fans love Ross Geller.

In a 2016 survey by Comedy Central, Friends fans in England were asked to vote for their favorite cast member. Schwimmer's Ross Geller came out on top with 25.6 percent of the vote, just edging out Chandler Bing, who 25.4 percent named as their favorite Friend.

37. None of the actors was a huge fan of the theme song.

Though it's impossible to imagine Friends without also envisioning the opening credits, in which the cast play in a fountain and dance along to the Rembrandts' "I'll Be There for You," apparently no one was a huge fan of the tune. "No one was really a big fan of that theme song,” Aniston said while appearing on The One in 2016. She then backtracked a bit: "I don't mean to say that. We felt it was a little, I don't know. Dancing in a fountain felt sort of odd, but we did it."

38. Aniston probably watches the show as much as you do.

While there are a lot of actors who can't bear to watch any of their projects, Aniston isn't one of them—at least not when it comes to Friends. While appearing on The One, Aniston said that she can't resist leaving the show on when it comes on TV. "I can't help it," she said. "First of all, I'm trying to remember which episode it is. Then, half of the time I'm saying to myself, 'I don't remember that!’ It's just that you can get sucked in to the nostalgia of it.”

39. The identity of "Ugly Naked Guy" wasn't revealed until 2016.

A dozen years after the series finale of Friends aired, intrepid HuffPost reporter Todd Van Luling finally uncovered the identity of the man who played "Ugly Naked Guy" on the show. The character—who lived in the apartment across from Monica and Rachel—was frequently referenced, but only ever appeared on the show twice. And in neither of those appearances was his face visible. But after a year of research, Van Luling finally had his answer: Ugly Naked Guy was an extra named Jon Haugen. (Though Van Luling's account of how he tracked this information down is worth a read.)

40. A (real) reunion isn’t happening.

In 2015, Cox went on the Late Show with David Letterman where he asked her about the possibility of a reunion. Cox responded, “It’s not going to happen.” She went on to explain that it’s difficult enough for the six of them to get together for a cast dinner, let alone a full-fledged reunion.

Kauffman and Crane have similar views about a reunion. In a 2014 interview with Entertainment Weekly, Crane said, “People say they want it, and the more that we say it’s a bad idea, people [disagree]. But I think if we actually gave it to people, there would be such backlash.”

A Jimmy Kimmel segment from 2014, which you can watch above, may be as close as we're going to get.

This story has been updated for 2019.

5 Hilarious Discoveries from the 2019 Ig Nobel Prize Winners

andriano_cz/iStock via Getty Images
andriano_cz/iStock via Getty Images

Each September, the Ig Nobel Prizes (a play on the word ignoble) are given out to scientists who have wowed the world with their eccentric, imaginative achievements. Though the experiments are usually scientifically sound and the results are sometimes truly illuminating, that doesn’t make them any less hilarious. From postal workers’ scrotal temperatures to cube-shaped poop, here are our top five takeaways from this year’s award-winning studies.

1. Left and right scrota often differ in temperature, whether you’re naked or not.

Roger Mieusset and Bourras Bengoudifa were awarded the anatomy prize for testing the scrotum temperatures in clothed and naked men in various positions. They found that in some postal workers, bus drivers, and other clothed civilians, the left scrotum is warmer than the right, while in some naked civilians, the opposite is true. They suggest that this discrepancy may contribute to asymmetry in the shape and size of male external genitalia.

2. 5-year-old children produce about half a liter of saliva per day.

Shigeru Watanabe and his team nabbed the chemistry prize for tracking the eating and sleeping habits of 15 boys and 15 girls to discover that, regardless of gender, they each produce about 500 milliliters of spit per day. Children have lower salivary flow rates than adults, and they also sleep longer (we produce virtually no saliva when we sleep), so it seems like they may generate much less saliva than adults. However, since children also spend more time eating than adults (when the most saliva is produced), the average daily levels are about even—at least, according to one of Watanabe’s previous studies on adult saliva.

3. Scratching an ankle itch feels even better than scratching other itches.

Ghada A. bin Saif, A.D.P. Papoiu, and their colleagues used cowhage (a plant known to make people itchy) to induce itches on the forearms, ankles, and backs of 18 participants, whom they then asked to rate both the intensity of the itch and the pleasure derived from scratching it. Subjects felt ankle and back itches more intensely than those on their forearms, and they also rated ankle and back scratches higher on the pleasure scale. While pleasure levels dropped off for back and forearm itches as they were scratched, the same wasn’t true for ankle itches—participants still rated pleasurability higher even while the itchy feeling subsided. Perhaps because there’s no peace quite like that of scratching a good itch, the scientists won the Ig Nobel peace prize for their work.

4. Elastic intestines help wombats create their famous cubed poop.

In the final 8 percent of a wombat’s intestine, feces transform from a liquid-like state into a series of small, solid cubes. Patricia Yang, David Hu, and their team inflated the intestines of two dead wombats with long balloons to discover that this formation is caused by the elastic quality of the intestinal wall, which stretches at certain angles to form cubes. For solving the mystery, Yang and Hu took home the physics award for the second time—they also won in 2015 for testing the theory that all mammals can empty their bladders in about 21 seconds.

5. Romanian money grows bacteria better than other money.

Habip Gedik and father-and-son pair Timothy and Andreas Voss earned the economics prize by growing drug-resistant bacteria on the euro, U.S. dollar, Canadian dollar, Croatian luna, Romanian leu, Moroccan dirham, and Indian rupee. The Romanian leu was the only one to yield all three types of bacteria tested—Staphylococcus aureus, Escherichia coli, and Vancomycin-resistant Enterococci. The Croatian luna produced none, and the other banknotes each produced one. The results suggest that the Romanian leu was most susceptible to bacteria growth because it was the only banknote in the experiment made from polymers rather than textile-based fibers.

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