1) People who you stop for so they can go by and they don't even acknowledge that you've been unselfish.
2) People who try and jump queues.
3) Women who use prams like battering rams.
4) Jock students who act like they own the planet, talk loudly and don't get out of the bleedin' way.
5) People who aren't your friends and act like they know you. I call them "cunts" for short.