Do you ever play a board game with your family and then one of your family makes up a rule while playing? I have. Me and my family were playing monopoly when all of a sudden my sister made up a rule. Their are 2 reasons why this is wrong. #1. It is not not fair to the people who played opposite of this rule before. Instead you start the game over or you apply the rule in the next game. #2. When you make a rule make sure to talk about it with your fellow playmates. Don’t make a rule which no one likes/ agrees on. Make sure to follow these rules so you have a good time playing.