I think the best source of muscial abuse has to be metal fans. I can say that I was a bit metalhead myself and as such i did inherit the uncanny lack of respect for any other genera of music because they were all GAY and metal was king. As a slightly more expansive person I can now enjoy the torrents of abuse that I get when I hang out in my local metal bar and tell people that I like listening to some ambient and dance music along with my favorite metal bands.
However one incident in particular sticks in my head. I was wearing a Megadeth T-shirt in the same bar and catching up with my friend Lisa, who I hadn't talked to in a few months, when some complete victim comes up and starts talking about how much of a wuss Dave Mustaine is and how James Hetfield is much cooler yada yada Metallica wank wank. Of course I attempt to make counter points a la "I couldn't give a toss what he's like, I enjoy the music and that's that really" but of course, Dave mustaine being a "wuss" negates all of my points forever apparently.
The way we got out of this conversation was classic though, my friend Lisa asks me if i wanna head out for a smoke, which he overhears and says "we'll continue this discussion outside". So me and my mate literally take two steps towards the exit and stop, while he bee-lines for the smoking area ahed of us thinking we're walking out with him. Leaving myself and my mate to kinda just say "aaaaaaaaaaaaanyway so we were talking about....."
Metal fans, forever an excellent source of humor.