For the record...

If I'm standing 6-10 feet away from you on a train platform, and can clearly hear the music emanating from your headphones even over the background noise of a train pulling into the station, you're committing mayhem on your ears. Turn down the freakin' volume while you still have a sense of hearing to preserve.

P.S. And I'd say the same thing even if my fellow passenger's choice of music DIDN'T sound like schlock.