overweight women who think they are sexy and wear the tightest clothes imaginable, and you feel sorry for the cloth but all of the extra weight is hanging up and over the tight pants or boots

Edit:

People who sit on a bus and then put their book bag or purse on the seat next to them

Morons who take up two parking spots in the parking lot.

People who discuss personal things in public and then get annoyed when people stare or comment.