I've never been treated like a freak because of the music I listen to, I have been treated like a freak because of other reasons though... mainly cuz people think I am a freak... and they could be right of course... actually, I think they are right. But it's not because of the music.
When I get to know people, they're mostly surprised when they find out what music I like. I am quiet, shy, don't take up a lot of space (ie most people have a tendency to forget that I'm in the room...kinda annoying), dress in pretty much "regular" clothes (although I wear a lot of black), and don't copy Marilyn Manson with my make up (in fact, I rarely use that shit). So I'm not a metalhead stereotype in other people's opinion...
I have gotten comments like "how can you listen to that? why do you like it?" and it's annoying to explain... I mean, they don't ask the BSB fans that... oh well.