History Main / NeverSayThatAgain

** In real life, some have this response to having Python quoted at them ''over'' and '''over''' and '''''over''''' [[SeinfeldIsUnfunny again]]...

* In ''Anime/PokemonTheOriginalSeries'', after Brock came back at the end of the Orange Islands arc, [[TraumaButton mentioning Professor Ivy around him made him huddle in a fetal position]] and plead "Don't mention that name." [[NoodleIncident It's never explained why.]]

* In ''Anime/{{Pokemon}}'', after Brock came back at the end of the Orange Islands arc, mentioning Professor Ivy around him made him huddle in a fetal position and plead "Don't mention that name." [[NoodleIncident It's never explained why.]]

** There is also the later scene [[InWhichATropeIsDescribed wherein]] Inigo has [[HeroicSecondWind made his comeback]] against [[YouKilledMyFather Count Rugen]]. After a while, Rugen has had enough of Inigo's CatchPhrase:

* In ''Film/GalaxyQuest'', Alexander Dane ''hates'' his character's CatchPhrase, leading to this:

*** The Doctor's "Don't do that. Really, don't" is fast approaching a CatchPhrase. It's used again in [[Recap/DoctorWhoS30E10Midnight "Midnight"]], [[spoiler:only this time played seriously]].

** Naturally, that becomes his CatchPhrase.

* ''LightNovel/SwordArtOnline'': The mere mention of Nobuyuki Sugou has unsurprisingly become a sore spot for Asuna's mother Kyouko, considering he turned out to be a BitchInSheepsClothing who trapped 300 SAO survivors, including Asuna herself, in ALO to perform inhumane MindControl experiments on them, [[AttemptedRape tried to rape Asuna]], and nearly drove her husband's company to bankruptcy when his crimes were made public. When Asuna [[CallingTheOldManOut calls her out]] on trying to set her up on another ArrangedMarriage, reminding her of how badly things went when she chose to make Sugou Asuna's fiancé, Kyouko understandably asks her to never mention him again.

* One episode of ''Series/MysteryScienceTheater3000'' has the guys watching a 1950s hygiene movie, with Mike reacting this way when the narrator refers to underwear (especially since [[{{Squick}} he's talking about fifth-grade children]]).
** While riffing ''Film/ThePumaman'', Crow responds to the on-screen question "But why does [[BigBad Cobras]] want [[MacGuffin the mask]]?" with "So he can be [[Film/TheMask SSSSSSSMOKIN']]!"; Mike very sternly tells him "Never...EVER...do that again."

** Also comes up between Grace and her NewAgeRetroHippy temporary boyfriend Josh:

-->'''Will''': Good. Oh, um... Grace, keep Sunday and Monday open.\\

* In ''Machinima/RedVsBlue'', [[CloudCuckooLander Caboose]] says that he and [[StraightMan Agent]] [[BrokenBird Washington]] have a lot in common. Wash takes exception.

* What about the panicking horses every time someone mentions Frau Blücher in ''Film/YoungFrankenstein''?

-->'''Agent Washington''': [[FunnyAneurysmMoment No, we don't.]] And don't ever say that again.

* Detritus in the Literature/{{Discworld}} book ''Literature/TheFifthElephant'' does this after an {{Uberwald}}ian dwarf calls Cheery Littlebottom "Ha'ak", a dwarfish insult indicating a race/species traitor, "not really a dwarf". Cheery looks hurt, Detritus produces his enormous "Piecemaker" crossbow and growls, "I know dat word he said to her. It is not a good word. I do not want to hear dat word again." This is on a diplomatic mission, remember.
** Well, he ''was'' being tactful.

*** And in ''Science of Discworld III: Darwin's Watch'', Ridcully not only forbids the Dean from saying "Yo!" ''before'' they get all kick-ass, but since they're fighting the Auditors with [[WeaksauceWeakness chocolate]], he cuts the Dean off before he thinks of "Choc and load!" as well.

** While riffing ''Film/PumaMan'', Crow responds to the on-screen question "But why does [[BigBad Cobras]] want [[MacGuffin the mask]]?" with "So he can be [[Film/TheMask SSSSSSSMOKIN']]!"; Mike very sternly tells him "Never...EVER...do that again."

* During ''VideoGame/{{Overwatch}} ''’s “Retribution” mission, Cassidy and Moira discuss the former’s… [[OohMeAccentsSlipping questionable “Italian” accent]] that he tried going with while at his cover job.
-->'''Cassidy''': I watched a bunch of old Spaghetti Westerns, I thought it was pretty good! "Bonah serah, sinyora. Can I-ah get’chu-ah somethin' to drink?"\\

* An Al Brodax ''ComicStrip/{{Popeye}} cartoon has the Wiffle Bird placing a spell on Wimpy in which he turns into a werewolf whenever he says the word "hamburger." This was because Wimpy attempted to make a burger out of the Wiffle Bird.

* An Al Brodax ''[[ComicStrip/{{Popeye}}]] cartoon has the Wiffle Bird placing a spell on Wimpy in which he turns into a werewolf whenever he says the word "hamburger." This was because Wimpy attempted to make a burger out of the Wiffle Bird.