What would you do if you got in a fight with your best friend?

Say if you were in a contest on a radio to win tickets to see a basketball game. And you won the contest and received two tickets. And the person on radio asks who are you gonna take with you? Your gonna say my best friend. Then you both go to the game and he asks you where is the snack money? You say I don't have it. Then he gets mad and punches you in the face. You know you have to defend yourself so you fight back. After you both are beat up badly what would you do? How will you solve the conflict?