What is your biggest pet peeve?

I have a rather long list. I think the biggest ones are people chomping on ice, people that lie or are afraid to stand up for what they believe in. I also can't stand people who are always fussin about things but make no effort to change them. Like people who are always going on and on about the political leaders. Okay, everyone says that they hate them, then why are you voteing for them? (If you ask them why they voted for them, most will say that they didn't vote at all. Well, there ya go. If you're to lazy to go vote, dont grip because they ones that did vote elected someone you didnt like) Of course I hate people that leave things just layin around in the middle of the floor. Another thing that just gets under my skin is people that always have to blame someone else for what they did. Like guys who rape & say it was her fault because of the way she was dressed or someone who kills & says it's cause they had a bad child hood. So freackin what? Grow up, take responsability for your own actions. The list just goes on & on....

Do I have to pick just one? I think in that case my biggest one would have to be stupidity. I deal with it a lot and just cannot hardly deal. A close runner up would be liars. I have no patience for that either.