My brain has silly ideas sometimes. WattaBunny talked about Hogwarts, and my brain thought of a magic duel against Kufky. In this duel, your goal is to disarm the opponent, meaning, getting them to somehow release their wand. But Watta would be clumsy enough to cause Kufky's whole dress to phase right off her, leaving her in her underwear. She is too embarrassed to continue, so Watta wins the duel.