People who are intolerant of other people's cultures... and the Dutch - actually that's a quote from Austin Powers III - I like the Dutch :)

I don't like football hooligans 'cos they're stupid.  People who think they know things but really haven't got a clue what they're on about really annoy me.  I hate that I had to take out loans to the sum of £10,000 just to go to University.  I don't like people who have no manners and I also don't like Robbie Williams much.  This said, I pretty much take people as I meet them and prefer to get to know them first (as I'm sure most people do).

People who follow trends really closely annoy me because one minute they're insulting how someone dresses and the next they're wearing it - duh!, sheep.