Oh yes, be aware of the competitive parents.

We just use chess and tournaments to teach character. He has a pin that has a queen on it that says "Play With Honor"; if his attitude is great he gets to wear it (this is a treat for him). He is learning to be a good winner and loser. He learns to shake hands, smile, and say Great Game no matter what. He's learned that even his heros like Magnus Carlson lose at times.