Four and Five were watching a little Winnie the Pooh, when along came bouncy, flouncy, pouncy, trouncy, fun fun fun fun Tigger.
"I'm Tigger." says Five.
"No, I'm Tigger!" Asserts Four.
"No, look at your shirt! See? It says Superman, so you can't be Tigger. I'm Tigger." Infallable argument. Case closed.