Ok, brace yourself. My list is pretty long.
1 - Whenever someone gets upset over such a stupid thing, when it's not worth it. (I mean seriously... Kinda childish.)
2 - Art Critizisem. I don't get much of it, but in real life I do. (Ok, Actually it doesn't bother me too much, but it just does sometimes!)
3 - When someone asks tons of annoying questions about me. (Like why I like anime so much, or why I write or draw. Man Those question annoy me.)
4 - High Pitched Voices or Badly Voiced Characters. (No offence to some voice actors, but sometimes their voices are just so... so... Dragon Tamer! How can I say this nicely?)
5 - When you finish a book but can't find the sequel. (I HATE that!)
6 - When someone says my name repeatedly. (This only happens in real life.)
7 - When someone I know says my real name on the internet. (XxMoonDancexX... *looks around*)
8 - When an anime series ends and you want it to continue! (Trust me, that happened to me a lot.)
9 - When you're shopping for a CD or a DVD and they don't have it! (Always happens to me and my sister whenever we're in Wal-Mart.)
10 - When you find a really cute or nice pair of jeans or a nice outfit but they don't have your size. (I'm sure that happened to all of us.)
11 - Heavy Metal. (Ok, I don;t really mind it, but if there's a ton of swearing and screaming, then what the heck? That's not music!)
12 - When I cry when I'm not supposed to. (That only happened to me like once in music class. We were listening to this one 70's song, it was SO SAD!! The class laughed at me

But sometimes I cry when I'm listening to music or watching a really sad and touching AMV on YouTube.)
13 - When someone teases my friends. (Seriously, what did they ever do to you that was so bad? Leave them alone!)
Wow... I'm so hot-headed and stubborn, aren't I?

Well I can't think of any more so I think that's it.