What is one thing you tend to find annoying from some Metal fans?

Its been said many times, but I hate when metalheads feel the need to bash other genres for no reason. If you don't like it, that's ok, but hating someone because they don't like the same music as you is just dumb. I love metal but I don't care if you listen to Pop or Rap or whatever. I admit I do find it annoying when core kids think what they listen to is metal, but I don't call them out on it or hate them for it, they can like what they like.