"Can you play the harp?" he asks, straight-faced. "Literally," he lies. Actually he'd tripped over Pettigrew's legs. What? He hadn't been that short even when he was that age. "He decided to feed the ducks with me, so of course," he smirks. "I let him. However, human transmutation never lasts, and I hadn't tried it before. I'm fairly sure we saw a duck try to eat an ear. He certainly thought he saw it. Unfortunately," he adds with mock regret, "this was after he'd eaten some of the bread."
Severus gives him a slight frown with concerned brows, wondering where the sudden change of mood came from.
He shrugs. "One has to place something, in a wager. It rather has to be something like that, when wagering with oneself, doesn't it?" He shakes his head decidedly, watching the unfortunate waiter as though just waiting for him to fall flat on his face. "If that had been his intent, he would have asked me if I wanted one when I looked at him," he says with conviction. "Let's remember that he didn't ask you either, shall we?"