"But you’ve been too busy saving the Wizarding world,” said Ginny, half laughing. “Well … I can’t say I’m surprised. I knew this would happen in the end. I knew you wouldn’t be happy unless you were hunting Voldemort. Maybe that’s why I like you so much."
"Yeah, size is no guarantee of power,” said George. “Look at Ginny.”
“What d’ you mean?” said Harry.
You’ve never been on the receiving end of one of her Bat-Bogey Hexes, have you?"