Ron huffed out a breath. "Look, are you determined to be annoyed at me or something? If you want to pick a fight, there's better places to do it then the Library, where Pince will come over here and box my ears. I'm not the smart one. That's you and Harry. Feel free to tell me I'm being an idiot as usual. I'm just trying to help," he said, getting as annoyed now as she seemed to be.