History BewareTheNiceOnes / WesternAnimation

* Princess Katherine, from Disney's {{Gargoyles}} series, started out as a brat but ended up essentially giving up her whole world to protect the orphaned gargoyle eggs. Then, when Demona and MacBeth end up [[BrainwashedAndCrazy attacking the young gargoyles]], Katherine grabs [[DarkActionGirl Demona]]'s laser-rifle and knocks her out. To repeat, she ''beat Demona'' in a fight, with a weapon she'd never seen before that night, when she's never been seen fighting on-screen before. Everyone is very impressed.

** Ned Flanders started off as the nicest person in Springfield. Then we find out he's been repressing for 20 [[RetCon (or was it 50?)]] years, and when he finally snaps [[ReasonYouSuckSpeech he ''epically'' chews out the townsfolk for being incompetent, selfish, annoying, obnoxious and all round horrible people.]]

* [[AvengersEarthsMightiestHeroes Ant-Man]] is the team pacifist, and will continue trying to negotiate a peaceful end to a confrontation well past the end of his teammates' patience. Unless the bad guys he's trying to talk down hurt Wasp. Then they will get ''owned''.

* [[PhineasAndFerb GET ON THE TRIKE!]] Note: [[TheEveryman Phineas]] does this after trying to reason with Candace.

* [[PhineasAndFerb GET ON THE TRIKE!]]

** Ned Flanders started off as the nicest person in Springfield. Then we find out he's been repressing for 20 [[RetCon (or was it 50?)]] years, and when he finally snaps [[ResonYouSuckSpeech he ''epically'' chews out the townsfolk for being incompetent, selfish, annoying, obnoxious and all round horrible people.]]

** Ned Flanders started off as the nicest person in Springfield. Then we find out he's been repressing for 20 [[RetCon (or was it 50?)]] years, and when he finally snaps he ''epically'' chews out the townsfolk for being incompetent, selfish, annoying, obnoxious and all round horrible people.

* Fluttershy from ''MyLittlePonyFriendshipIsMagic'' is the resident ShrinkingViolet and FriendToAllLivingThings. She's timid, soft-spoken, sensitive, and literally afraid of her own shadow. But if you harm or threaten any of her friends, [[TalkingTheMonsterToDeath be prepared for some utterly epic scolding.]] [[spoiler:Despite being terrified of a facing a full-grown dragon for the entire length of "Dragonshy", she finally unleashes an awesome WhoDares rant, resulting in said dragon backing down, crying in shame, and eventually leaving. In "Stare Master", she goes into MamaBear mode yet again as she {{Death Glare}}s a cockatrice into submission - and threatens to tell its mother - ''while it's turning her to stone''. [[BeyondTheImpossible And she wins.]]]] BadassAdorable indeed.

* Fluttershy from ''MyLittlePonyFriendshipIsMagic'' is the resident ShrinkingViolet and FriendToAllLivingThings. She's timid, soft-spoken, sensitive, and literally afraid of her own shadow. But if you harm or threaten any of her friends, [[TalkingTheMonsterToDeath be prepared for some utterly epic scolding.]] [[spoiler:Despite being terrified of a facing a full-grown dragon for the entire length of "Dragonshy", she finally unleashes an awesome WhoDares rant, resulting in said dragon backing down, crying in shame, and eventually leaving. In "Stare Master", she goes into MamaBear mode yet again as she {{Death Glare}}s a cockatrice into submission - and threatens to tell its mother - ''while it's turning her to stone''. [[BeyondTheImpossible And she wins.]]]] BadassAdorable indeed.

** TheFlash gets his own shot at this too. The next time you start thinking that he doesn't extend much beyond being the goofy, flirtatious, practical joker of the League, just remember that this is the man who can ''make you explode'' with his bare hands or rip you to pieces by circumnavigating the globe and [[http://www.youtube.com/watch?v=326s1ISaVRI coming back to smack you one.]]
*** It's true. Do. Not. Fuck. With the Fastest Man Alive.

* Fluttershy from ''My Little Pony: Friendship Is Magic'' is the resident Shrinking Violet and Friend To All Living Things. She's timid, soft-spoken, sensitive, and literally afraid of her own shadow. But if you harm or threaten any of her friends, [[TalkingTheMonsterToDeath be prepared for some utterly epic scolding.]] [[spoiler:Despite being terrified of a facing a full-grown dragon for an entire episode, she finally unleashes an awesome WhoDares rant, resulting in said dragon backing down, crying in shame, and eventually leaving. In a more recent episode, she goes into MamaBear mode as she {{Death Glare}}s a cockatrice into submission - and threatens to tell its mother - ''while it's turning her to stone''.[[BeyondTheImpossible And she wins.]]]] BadassAdorable indeed.

* Fluttershy from ''My Little Pony: Friendship Is Magic'' is the resident Shrinking Violet and Friend To All Living Things. She's timid, soft-spoken, sensitive, and literally afraid of her own shadow. But if you harm or threaten any of her friends, [[TalkingTheMonsterToDeath be prepared for some utterly epic scolding.]] [[spoiler:Despite being terrified of a facing a full-grown dragon for an entire episode, she finally unleashes an awesome WhoDares rant, resulting in said dragon backing down, crying in shame, and eventually leaving. In a more recent episode, she goes into MamaBear mode as she {{Death Glare}}s a cockatrice into submission - and threatens to tell its mother - [[CrowningMomentOfAwesome''while it's turning her to stone'']].[[BeyondTheImpossible And she wins.]]]] BadassAdorable indeed.

* In ''DC Showcase: Superman/Shazam: The Return of Black Adam'', Black Adam learned that even though Captain Marvel is the ultimate nice guy boyscout (even compared to Superman), presenting him a [[TheSadisticChoice sadistic choice]] and then trying to kill the hostage anyway is a [[LetsGetDangerous BAD IDEA]]. It doesn't matter how experienced or powerful you are, [[CurbStompBattle you WILL get your butt kicked. SOUNDLY.]]

*** Ursa...just...Ursa...

* Ron Stoppable in ''KimPossible''. He's a generic goofy sidekick that mostly gladly acts as a distraction, but if you get him pissed of by either hurting Kim or boasting about destroying Bueno Nacho he gets in such a Mystical Monkey Rage that he will kick your ass.

** In a more recent episode: DoggedNiceGuy Cody has been trying to get Gwen's attention for about three seasons. Instead, Gwen wound up kissing Duncan, even though ''he'' was still dating Gwen's friend(ish) Courtney. Cody had a slight HeroicBSOD after finding out, during which Duncan showed up, unaware what was going on. Then he insulted Cody's outfit. Then Cody [[CrowningMomentOfAwesome knocked him out in one punch]].

** Oh, and let's not forget Tigatron, the resident FriendToAllLivingThings... which will make you regret if you '''''threat''''' to destroy the nature, like [[spoiler:Inferno]] has learnt.

** He seems to gather these. It comes with the whole messiah thing. First; Katara, his cuddly, adorable LoveInterest, always loving and nurturing, a true TeamMom to her very core... but threaten innocent people and she can [[MakingASplash blast you through a wall with cupful of water]] and perhaps [[AnIcePerson turn you into an ice cube]] in the process. Piss her off enough and she can ''[[PeoplePuppets bend the blood in your veins]]''. Next up is the girl's brother; Sokka, the epitome of PluckyComicRelief. He also happens to be a swordfighting prodigy, a brilliant tactician, and a genius inventor: nothing less than a SteamPunk [[{{Watchmen}} Ozymandias]].

* ''{{The Spectacular Spider-Man}}'': Otto Octavius. The mainly kind, over apologetic and overall shy fantasizes about killing his boss, Norman Osborn. Then after his big snap, he manages to at least slam him around a bit. Surprises me that Norman hasn't become a recluse after all the incidents with insane coworkers he's had.

** That's because every single one of her emotions is exacerbated to the extreme. When she's happy, she's bursting with euphoria. When she's sad, she loses all will to live. When she's afraid, she's paralyzed by fear. So, naturally, when she's angry, she is rage incarnate.