Rule #54. Kneeing a man in the balls is only appropriate under four conditions:

Rule #54. Kneeing a man in the balls is only appropriate under four conditions: 

This rule stipulates that kneeing a man in the balls is only appropriate under four simple conditions. 

Condition #1. He has slept with your wife/mother/grandmother

Condition #2. He is being a little bitch about everything

Condition #3. He has picked FC Barcelona during a game of FIFA

Condition #4. He has kicked you in the balls without you breach any of the above three conditions.