If you think I'm going to let six people risk their lives - !''because it's the first time for all of us,' said Ron.'This is different, pretending to be me -''Well, none of us really fancy it, Harry,' said Fred earnestly. 'Imagine if something went wrong and we were stuck as specky, scrawny gits forever.'Harry did not smile. 'You can't do it if I don't cooperate, you need me to give you some hair.''Well, that's the plan scuppered,' said George. 'Obviously there's no chance at all of us getting a bit of your hair unless you cooperate.''Yeah, thirteen of us against one bloke who's not allowed to use magic; we've got no chance,' said Fred.
J.K. Rowling, Harry Potter and the Deathly Hallows
humor