I hate loud chewing!!What about you?

I hate it when people leave a room and don't turn of the lights.

[Weelee]

I hate it when people don't put things back where they got'em from.....and I spend days looking for it grrrrr

Personal space invaders. Arghhhhggaaahhh!!

Soup slurpers!

[kareem]

OP, that's a huge one of mine as well. Misuse of ellipses is also another...

Talking while eating badly..

I hate when people are rude to cashiers or waiters/waitresses.

I hate when people say the will give it more than 100% E.G i gave it 150% or 110%

Can I have more than one?

People who chew with their mouth open.
People who talk with their mouth fall.
People who sit and talk to me while I am eating, but they are not.

Nosy people who have to know everything that is going on. I especially hate those nosy people who complain about other people not minding their own business. (I may have a specific person in mind for that one)
People who invade my personal space. Especially don't like people with bad BO who invade my space.

I think I might stop there. I'm sure there are people around whose pet peeve os people who have too many pet peeves.

People (family) who invite me over for dinner, and put a movie on then talk through the thing. Either shut up and watch the movie, or turn it off and we'll talk. Loan me the movie and I'll watch it at home without any distractions.

People who make noise during movies.

People who make noise during movies.

omg, those people are so annoying!! I agree with you! xD

It also annoys me when people honk if I am not super fast while entering in a roundabout! Safety comes first!

I hate when people chew gum like goats.

I hate it when people leave the TV on when they're not watching it.