Like the jackass who mocks a lion at the San Diego Zoo, fans taunt players with no regard for the potential consequences. Fans constantly blur the barrier by tossing drinks at players, hurling insults, and occasionally running on to the field. Let's be honest, the fan in Auburn Hills who hit Ron Artest with a beer deserved to have his ass beat. Everyone's a tough guy until they realize the guy they just called a "bitch" is 6'8", 260 pounds, and athletic as hell.
Sometimes fans deserve a beat down.