#19: Control Your Anger
Somebody needs to educate this overgrown baby throwing temper tantrums over losing at the pool. He wouldn’t be the first adult man to go totally nuts in order to conceal his own incompetence. You all probably remember one famous tennis player who used to smash his racquets in fury after particularly unsuccessful points.

Even so, it is a little bit of a step up to punch a hole in the wall of your brother’s house in front of your young children. This pathetic pool player could do with a couple of anger management classes and some coaching on what constitutes a proportionate response to losing a game.