* 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 that he credited himself as "[[AlanSmithee Raymond Spum]]" instead, out of embarrassment. He was quoted as saying, "The timing was bad. The drawings are bad. The colors are bad. From an artistic standpoint, to me, it's a really ugly cartoon."
** He also disliked how he was (supposedly) [[ExecutiveMeddling forced to add]] [[RatedMForMoney strong adult themes]] to RenAndStimpy: Adult Party Cartoon.
** He also claims that he can barely watch TheRippingFriends, since the whole show was [[ExecutiveMeddling 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 [[DerangedAnimation 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.
** He does, however, say that he went into cartooning because it was the only job he could do well enough to get paid for.
* FlipFlopOfGod: On Ren And Stimpy's sexuality.
** He has been quoted as saying that he didn't know or care if they were gay (saying it was [[ShrugOfGod "none of his business"]]), but it's pretty clear that they are if APC is anything to go by.
* 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.
** He also did [[https://www.youtube.com/watch?v=PtMU8nvZzOs this video]] for the WeirdAl song "Close But No Cigar".
* MagnumOpusDissonance: He's best remembered for Ren and Stimpy, but John considers George Liquor to be his "strongest character".
** While he's as critical of APC as the next guy, he considers the APC episode "Altruists" to be the best episode of Ren and Stimpy he's ever made. Needlessly to say, the fandom disagrees with him. Hard.
* 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. He also backhanded the claims of not meeting deadlines since ExecutiveMeddling kept forcing him to retool the episodes over and over until they were accepted.
* ShrugOfGod: His initial reaction to questions on whether Ren and Stimpy are gay. See FlipFlopOfGod above.
* 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]].
** When John was fired, many cartoons he was working on were left on the cutting room floor. It's interesting to think how his career and show would have gone if he hadn't have been fired.
* 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.