* BreakthroughHit: ''TheRenAndStimpyShow'', without a doubt. Though considering most of his later work and rumors of how difficult he is to work with, his "breakthrough hit" is also his one-hit wonder.
* CreatorBacklash: John has actually been pretty critical of his early work, particularly on Mighty Mouse: TNA and RenAndStimpy. He even warns his fans to not study his cartoons, but rather all of his influences--"For everything I did right, there were a ton of mistakes."
** He also refused to give himself credit for his directorial role on the Ren and Stimpy episode ''Nurse Stimpy''. He thought it was so bad (due to ExecutiveMeddling) that he credited himself as "[[AlanSmithee Raymond Spum]]" instead, out of embarrassment.
** He also disliked how he was forced to add strong adult themes to RenAndStimpy: Adult Party Cartoon.
** He also claims that he can barely watch TheRippingFriends, since the whole show was meddled with to death.
** As mentioned in the main page, he dismissed his contributions to the video game ''Yoake No Mariko'' as "pretty bland".
* DoingItForTheArt: The whole reason John became a cartoonist was to bring back the wacky, anarchic, overall cartoony animation to the mainstream and put a stop to the stiff, soulless, formulaic TV animation that was prevalent at the time.
* FlipFlopOfGod: On Ren And Stimpy's sexuality.
* GodDoesNotOwnThisWorld: Oh, yeah. Unlike other examples, John would get another turn with Ren and Stimpy later on after being fired.
* HeAlsoDid: This ''[[DerangedAnimation gloriously]]'' [[MindScrew insane]] [[http://www.youtube.com/watch?v=ybDX_5hQ6So music video]] with Music/{{Bjork}}.
** He also provided [[https://www.youtube.com/watch?v=-ZOSybWPvc0 animation]] for [[MileyCyrus Miley Cyrus']] 2013-14 ''Bangerz'' tour.
* RealLife/MeanCharacterNiceActor: His character Ren is a jerk, but John can be a pretty nice guy in person. That said, some claim he does descend into JerkAss territory, such as Creator/BillyWest, but he does have his defenders and genuine friends.
* OldShame: TheRippingFriends. He also dislikes about talking his "[[AccidentalInnuendo embarrasing 80's flat period]]"--referring to his really early artwork, specifically. He is also not proud of his tenures on many 1980's cartoon shows such as TheSnorks, ''WesternAnimation/HeManAndTheMastersOfTheUniverse1983'', etc.
* ScheduleSlip: The often-cited reason Nickelodeon fired him from his own show, although the man himself {{jossed}} this and insists "Man's Best Friend" was what got him booted off.
* WhatCouldHaveBeen: Sometime during the 1980's when John was working on ''Mighty Mouse'', Creator/RalphBakshi had recognized John's talent. Ralph and John were planning on teaming up to do an animated film called "Bobby's girl". [[TeenDrama Which was set to be a parody of the teen comedies during the time]]. However [[TriStarPictures TriStar]] [[ExecutiveMeddling canceled the project]]. But artwork of this proposed project can be seen in the [[http://www.amazon.com/Unfiltered-Complete-Bakshi-Behind-Mighty/dp/0789316846 Unfiltered: The Complete Ralph Bakshi]] book. It's interesting to think what John's career would have been like if he were a film director, not a creator of television shows.
** Some time ago, he went into Creator/DreamWorksAnimation to pitch a movie, but he came back with an ExecutiveMeddling [[http://johnkstuff.blogspot.com/2009/07/ideas-arenas-modern-way-to-write.html horror story]].
* WhyFandomCantHaveNiceThings: John used to host regular AIM chats with the fandom, and post Q&A sessions on certain Ren and Stimpy message boards. Some chats and question sessions went well, at least at first. However, after a large amount of "heckling" and being drowned out with constant clamoring requests of "Do you like this show? What do you think of this show? What's your opinion on anime?", etc. (mostly done for the purpose of troll-baiting his opinionated statements against animated shows he doesn't like) and even moderation not helping matters of people getting somewhat out of hand, he dropped this method of communication altogether. However, he later would created his own self-moderated blog to talk about various subjects and drawing and animated character theories, and does participate in comment discussions there. He has lessened considerably himself from making as many overt statements about cartoons he does not like quite as much, focusing more of his attention on simply praising the inspirations he does admire.