Future Hall of Famer and close personal friend Tony Stewart took part in a sprint car race, in Minnesota, his engine blew up one lap in.
Afterwards, he was signing autographs, and someone in the crowd started yelling at him for "quitting" the race. There's cell phone footage and you can see him trying to ignore the guy - But then they start throwing the one finger salute and POW!!!
Tony ran straight at the guy threw a left hook and now is just waiting for the lawsuit. According to police, no charges have been filed . . . yet.
WARNING: PLENTY OF FOUL LANGUAGE AND SIGN LANGUAGE IN THE VIDEO