"What drives Philadelphia sports fans to be so hostile?"

Possibly our long and not-so-glorious recent history of painful losses, coupled with Philly often being compared unfavorably with NY in general? I don't know, just a guess. I will say, it is incredibly annoying and frustrating to go to Phillies games and be surrounded by Mets fans, especially if the Phillies aren't winning.

What's more, I'm in a mixed-team marriage...I'm a Phillies fan, he's a Mets fan. It's tough, but we make it work somehow.