With its new Netflix and Kickstarter-funded series, Mystery Science Theater 3000 will soon be returning to our lives. Over its 211 episodes and roughly 11 years on and off the air, the cult classic has brought joy to so many fans who love to hate watch terrible movies. Mystery Science Theater 3000: The Return promises to continue that time-honored tradition, and we couldn’t be more excited.

Many directors and actors who were featured on the cult series took their episodes as hilarious compliments. However, not everyone can be as cool and accepting of nonsense as Adam West, who later hosted a “Turkey Day” marathon after being mocked on the show. It turns out when you create a show that’s sole purpose is to mock other people’s work, some of those people are going to be angry. This is by no means a list of all the criticisms and controversies the beloved sci-fi comedy has faced, but here are some of the best examples of when B-grade movie mockery translated into real-life hurt feelings.

1 Sandy Frank really hated the “Sandy Frank Song.” The Japanese kaiju movies featuring Gamera were a big part of MST3K over the years. Over the course of the show’s 211 episodes, the parody show covered five Gamera movies, and the monster movies became huge part of the show’s third season. However, Sandy Frank, whose entertainment company held the rights to the Gamera films at the time, was less than thrilled with the mockery. Frank’s hatred of the show was somewhat justified as his company, Sandy Frank Entertainment, was mocked so often, the show made a song just for him. Of course “Sandy Frank Song” was biting and hilarious, claiming that Frank was “the source of all our pain” and that Spielberg wouldn’t return his calls. Frank was allegedly so infuriated by the mockery, he refused to let the Gamera episodes to be rebroadcast once MST3K’s rights expired. As a result, a large chunk of Season 3 was missing from reruns for years.

2 A Japanese production company also disliked the show’s Gamera mockery. Sandy Frank wasn’t the only person offended by MST3K‘s take on Gamera. Kadokawa Pictures, the Japanese studio that originally held the rights to the Gamera movies, saw the episodes as making fun of a part of Japanese culture. Because of the studio’s displeasure, the episodes were unwatchable for years and achieved a sort of cult following within the show’s cult following. However, things changed when Kadokawa finally sold the rights to these movies to a U.S. company. After that, Shout! Factory was able to release all of the Gamera episodes in a special appropriately entitled MST3K vs. Gamera.

3 The ‘Mitchell’ episode allegedly resulted in threats from Jon Don Baker. Apparently Jon Don Baker is weirdly protective of Mitchell, the 1975 movie about an alcoholic police detective. For a while, there was a rumor floating around the MST3K cast and crew that Baker was so upset over the show’s treatment of Mitchell, he would beat them up if he ever met them in person. The rumor is covered in depth in the Mystery Science Theater 3000 Amazing Colossal Episode Guide. The threat has gone down in the show’s history, but Kevin Murphy, who played commentator Tom Servo and was one of the writers for the episode, thought it was a joke. Still, that didn’t stop Murphy from avoiding Baker when they were staying in the same hotel.

4 The director of ‘Squirm’ was furious at the show, but not for the reason you would expect. In an interview with Birth. Movies. Death., Jeff Lieberman explained why he was so upset to have Squirm featured on the show, and his complaints make a lot of sense. Squirm was released in theaters all over the world. Selling it to Mystery Science Theater 3000 for what had to be a relatively small sum of money immediately cheapened the value of the movie, which the director owns 12 percent of. “I was furious about the financial aspect,” Lieberman said. “I didn’t give a shit what anybody says. It’s a movie about worms.”

5 The director of ‘Hobgoblins’ loved his episode until the very end. During a 2008 interview with Rick Sloane for Bad Movies, the director explained the journey of emotions he experienced while watching Hobgoblins‘ MST3K episode. According to Sloane, he loved the episode until the very end when he was directly mocked. “I was mortified when they dragged out the cardboard cutout and pretended to do an interview with me,” he said. “I was caught off guard. I had never seen them rip apart any other director before on the show.” However, the show’s treatment of Hobgoblins directly inspired Sloane to create a sequel to the film.

6 There was creative drama behind the scenes of the show. It’s always a big deal when a show creator leaves a show. However, when a show creator, host, and central creative voice of a series leaves, that’s another more pressing matter entirely. That’s what happened on MST3K when Joel Hodgson left the show in the middle of its fifth season. In an interview with the A.V. Club, Hodgson revealed he left because he couldn’t stop arguing with longtime contributor Jim Mallon. “You can’t really be fighting with someone and doing all the stuff you have to do,” he said. “The thing would have blown up if we both would have stayed there. I like to look at it like the story of King Solomon, when the baby was brought before him.”

7 Kurt Vonnegut Jr. was not impressed by the show This is less a controversial scandal and more of another reason why you should never meet your heroes. In Mystery Science Theater 3000: The Amazing Colossal Episode Guide, Kevin Murphy discusses the time he met his literary hero, Kurt Vonnegut Jr. However, when Murphy was telling the Slaughterhouse-Five and Cat’s Cradle author about the premise of his show, Vonnegut was less than impressed, telling him that every artist deserves respect. According to Murphy, he even invited Vonnegut to dinner, which hedeclined. Later that night, Murphy and Vonnegut ended up eating at the same restaurant. However, the legendary author was eating alone.