He can run faster than Severus Snape confronted with shampoo... - J.K. Rowling, Harry Potter and the Deathly Hallows

"Oh, of course,"said Ron, clapping a hand to his forehead. "I forgot we'll be hunting down Voldemort in a mobile library."

"Of course it is happening inside your head, Harry, but why on earth should that mean that it is not real?"

"Yeah, well, food's one of the five exceptions to Gamp's Law of Elemental Transfigurations,"said Ron, to general astonishment."

"Oh, of course,"said Ron, clapping a hand to his forehead. "I forgot we'll be hunting down Voldemort in a mobile library."

"Why are they all staring?"demanded Albus as he and Rose craned around to look at the other students."Don’t let it worry you,"said Ron. "It’s me. I’m extremely famous."