Some of mine are:
When people snatch something thats mine out of my hand.
Getting hit in general ( Except when its playful and I'm in the mood for it ).
Being ignored, accidently or on purpose.
Singing. {Unless your a musical artist with an amazing voice, I don't want to hear you sing! D<}
Horrible grammar, online or offline.
Being watched over my shoulder without my permission or knowledege.
Drama.
When someone tries to be funny and they really aren't.
People who walk so freakin' slow in front of you.
Hypocrites (although sometimes I am stuck in a position that I am one)
Being asked to do work or to have my paper copied.
Just plain rude people
Couples right in the middle of the hallway
Young pc gamers who use the microphone.
Illogical people
Arrogant people
Idiotic People and or stupid people
Crying Babies
Being crowded
People who "sag" their pants
People who scream or laugh really really loud
and thats not half of it, you can see that I share alot of your guys pet peeves