Almost everyone at my workplace listens to most forms of modern beat, rap, pop, and well, all the new stuff. It's not my favorite type of music, but I listen anyway, as it passes the time.
On late night shifts, people plug their Mp3's and iPods to a dock station/Loudspeaker, and blast it away. Now, one time I was the only one who had an iPod, so they asked if I could plug it in. I said "Sure, but I don't think that most of you would like what I have." and they said they would be fine with it.
So I plugs it in, annd hit shuffle, and some song comes on, I don't remember what it was, except that it had a good beat to it. Half a second later, someone pulls my iPod out, declares loudly that my taste in music is cpmplete load of toss and handed back my iPod.
He then asks what I listen to, and I tells him, and again he says that it's a lot of rubbish, and says I should try listening to his types of music. I says I have and that it isn't my thing, and again he says that it's bullshit.
I says, "Well, look here, you have an opinion! Your opinion is that my music is shit, and my opinion is that I really don't care about your music."
The remainder of the shift he tried to 'convert' me to his style of music.