Not surprising. I have never felt more menaced than while attending a Skins/Iggles game. Hell, I went to a Blazers/Sixers game once and someone was flicking me shit about the Blazers being down in the third quarter. I replied something along the lines of "you can have this game; we beat your ass for the Championship in '77". The guy actually came at me like he was Bobby Clarke. Ridiculous.
Philly fans are the worst in sports. Belligerent, unloyal and ungrateful.