Berserk Button/Naruto

"Choji: (after one of the Sound Genin calls him "fatso") "I'M NOT FAT! IIIII AAAAAAM BIIIIIG BOOOOOOONEEEEEEEED!""
 * Choji Akimichi from Naruto is constantly prodded into battle by his allies and enemies who call him fat.

"Choji: You can [...] mock me all you want, but when you insult my best friend... (dramatic pause) ... I will obliterate you!"
 * One of the Sound Four hits three of Choji's berserk buttons in a single fight- calling him fat and useless, eating his last potato chip and insulting Shikamaru. In response, Choji takes the third and most powerful of his special food pills, and it
 * The Choji example is even more amusing considering that, yes, he is fat, his entire family is pretty big, because their family specialty involves various uses for all that extra weight, including burning through all of it in a single fight for extra energy. Although Choji himself is less fat and more big-boned after the Time Skip.
 * The reason for this sensitivity is most likely his eing bullied and ostracised by many children when he was little. And given that his girth is actually necessary for proper execution of his clan's special techniques, taking offence to people insulting it is quite justified
 * Did we somehow forget insulting Shikamaru. I'm pretty sure the following quote explains it:

"Naruto: Man, I don't know where you got your taste in men, Sakura, but it stinks.
 * This exchange from The Movie is pretty self-explanatory:

Sakura: (furiously) WHAT DID YOU SAY?!

Naruto: (with Blank White Eyes and a small voice) I'm sorry, what was the question?"


 * He did have a point though.
 * On a more serious note, even mentioning Orochimaru in a respectful fashion in front of Naruto is a good way to activate Naruto's Super-Powered Evil Side.
 * After the timeskip, Naruto and Sakura are both angered by anyone who badmouths Sasuke, or suggests that he is too far gone for them to bring back.
 * Lee gets quite angry whenever anyone speaks ill of his mentor Might Guy.
 * In Shippuuden, a surefire way to push Kankuro's Berserk Button is to badmouth Gaara in front of him.
 * Never! EVER! Call Tsunade an old hag/grandma! EVER!
 * Except if you're Naruto, who uses it more as an affectionate nickname.
 * The Fifth Mizukage does NOT like anyone implying that she's in danger of ending up an old maid. Even if they're not.
 * Those examples are NOTHING compared to Naruto's biggest berserk button; killing or appearing to kill his friends. When Pain pushed that button in his legendary Moral Event Horizon in chapter 437, it triggered an Unstoppable Rage that would make the fury of the Incredible Hulk seem like a child's tantrum.
 * Also accounting for foreshadowing, this specific Berserk Button is what pushed Naruto through his first Unstoppable Rage when Haku nearly killed Sasuke during the Wave Country arc.
 * Speaking of Naruto, you should never insult the Third title of Hokage in front of him. He won't care if you're one of the legendary sannin. He won't care if you're a woman. He...will... KICK ... YOUR ... ASS !
 * One filler arc pre-Time Skip gives Naruto another Berserk Button. An imposter is going around Konoha, ruining Naruto's reputation (and his good credit at the local restaurants). Worn out from trying to clear his name, Naruto starts to head home...then has a major Oh Crap moment and rushes all the way back there to find that . Cue Super-Powered Evil Side breaking out.
 * Initially, Sasuke's berserk button was simply mentioning his brother, now it's mentioning his brother in a disrespectful way
 * Or if you mention his clan...or have a Sharingan "That you don't deserve".
 * Don't mess with Gamabunta's sons or underlings, it's not a good idea, even if you're a tailed beast.
 * Very few things seem to bother Tobi (being immortal and all) but he gets pretty ticked off if somebody betrays Akatsuki. Of course he has quite the Freudian Excuse.
 * Kakashi REALLY hates Orochimaru and Kabuto's Edo Tensei (Summoning: Impure World Resurrection) technique, which they use to revive dead shinobi and force them to fight. In fact having to fight an Edo zombie is the first thing in the manga that visibly made him rage. In fact he really seems to hate Kabuto in general.
 * Aside from being a Stepford Smiler, Sai doesn't really seem to get fazed by much of anything, whether comical or serious. However, all that changes when . This is Sai's response.
 * Hinata doesn't like it when Naruto in danger. She'll stare you in the eye even and try to attack you even if you did just destroy the village.
 * Implying that those with a bijuu sealed in them is Not Even Human or the use of the term jinchuuriki by anyone who either a jinchuuriki or good friends with one is a major one for Naruto.
 * It doesn't take much for Deidara to flip a shit but if you call his art inferior (or a cheap rip-off)...run.