1. No name calling.
2. No whining.
3. No eye-gouging
4. No hits below the belt.

Play nice and use your wits [if you have them]. If you can't think of any other response than "You suck!! And your father was a hamster!" then you prolly had best shut up.

Remember the best line of them all: "Better to keep your mouth shut and let them think that you're stupid than to open it and remove any doubt."