Things that piss me off:
People that act like they're better than other people.
People that tear pages out of books that DO NOT BELONG TO THEM.
People who 'borrow' my inking pens when I specifically tell them NO.
People who 'borrow without intent to return'.
Things that are horribly beyond my control.
Snow/sleet/all around bad weather on my day(s) off.
Stupid people.