Rule 1: Don't spit when you're happy, unless you're a bird. Then it's just what you do.

Rule 2: Don't try to catch with yo-yo mouth, unless you're a professional juggler. Then it's just your thing.

Rule 3: No fly with the circus folk, unless you're a trained aerialist. Then go ahead, we won't judge.

Rule 4: No flying doggy style done right, unless you're a pro at it. Then show us what you got.

And remember, these rules are made to be broken, but only by the really good ones.