Philadelphians are not only the angriest humans on the face of the earth, but they have also been voted the fattest and the rudest. But then, you've never had Wilson Goode for a mayor (ah yes, the MOVE house bombings...) or the Phillies for a baseball team.
I can say the above with all the frustration of a true Philadelphian, being born and raised there.
Linguistic curiousities about Philadelphians:
we pronounce "water" as "wooder," call "pop" "soda,"
"Thursday" sounds like "Thirsty"
"Eagles" (our football team) is pronounced "Iggles"
and so on. We do not sound like Rocky. Trust me.