People who break silence to say something meaningless.
People who refuse to accept when they've lost an argument.
People who hold beliefs subjectively, defend them vigorously, and refuse to recognize the validity of other perspectives.
People who think philosophy is a waste of time.
People who can't take a joke.
Non-merit based selection processes.
Obamaniacs.
Girls who seem easy but aren't.
Small talk with close family and friends.
People who tell the same stories/jokes repeatedly and think it's funny or appreciated every time.
People who make hasty generalizations.
Girls who wear boots over jeans.
When people who don't understand science attack it's theories without supporting evidence.
People who don't want to be happy.
People who will not let other people make their own choices without interference or denigration.
People who see debate as a medium for competition, status, and self-esteem enhancement rather than as a pathway to truth.
Anyone who says, "I work hard, and I play hard."