I agree with the previous three and must add...
People who tell me I have too many pets.
People who try to get me to convert.
People who call me by my security/meter reader "name" Ticket Nazi.
People who constantly complain about things they can't change.
People who are obsessively clean.
Conservatives.
People who brush dog hair off their pants, like it isn't part of the outfit, lol .
People who say "like" every other word of their conversation.
The list could go on forever but I'm sure that my writing all of these is somebody's pet peeve