We always hear about unruly fans in Philadelphia and some of it is just - fans everywhere act in ways that make you scratch your head, regardless of where they are from. 

While I agree Eagles fans can be tough and sometimes unruly - its everywhere.

Any game you go to and alcohol is involved fans are going to act unruly. Eagles fans, Giants fans, Browns fans, Raiders fans - none are the worst, including Cowboys fans.

The worst fan is a drunk fan.

Whenever alcohol is involved, fans are going to act unruly. Any place alcohol is involved people act like idiots - I've been all over, and everywhere I go fans act like fools and 9.9 times out of 10 alcohol is involved.

Here is another example (though can't verify that alcohol was involved here).