SuperFerret once played a game of Memory against Superman villain Brainiac. The game went back and forth with SuperFerret taking the lead, then Brainiac etc. But eventually only four cards were left and the game was tied. It was Brainiacs turn and the one card he picked up had a Superman symbol. He knew where the last Superman card was and just as he was about to pick it up SuperFerret pointed and shouted.....
SuperFerret: Look over there, free ice cream!
Brainiac: There isn't any ice cream over there!
As Brainiac turned back around, SuperFerret had already switched the cards around. And when Brainiac went to pick up the last Superman card to win the game, it ended up having a Bat symbol on it.
Brainiac: No!
SuperFerret saw this as his chance, so he picked up the first Superman card. But when he wanted to pick the second, he had forgotten where he switched it to. He ended up picking the card with the Bat signal and giving Brainiac another chance, which he used to win the game.
Moral of the story kids, don't cheat.