This gif sums it up pretty well I think...
If you watch that closely...chick pushes him, Jericho hits his head on the car, before he even turns his head he's already throwing the punch at whoever just caused him to hit his head..
That's pretty much the definition of asking to be punched man or woman, shoving a guy in a mob of dumbass fans.
And this video can't be embedded but it's longer and worth a watch
http://www.youtube.com/watch?v=HZjjMnCxOfs