Hmm.

Certain spelling mistakes. Although, I'm not a good speller myself. Some basic words though should be spelled properly? Like, you. Not "U" or your not "ur" and stupid things like that. It's really annoying.

People who think they're better then everyone else (or certain people even).

People who pretend to be your friends, but don't want anything to do with you or ditch you all the time.

Rude people!!

People how have no control over their kids!! I see this ALL the time at work. Kids taking all my menu's off ALL the tables when I NEED them there for customers. The parents don't care.

People who are cruel to pets or should own them