"But you didn't show me," Percy answered quietly. "You would have, but you thought I'd turn you over to Filch for it. So you didn't." He sighed after a moment. "Right, no, I know what you've saying. But I never said I left because of you. I left...well, because of dad, directly. The way I got on with you - or didn't get on, more accurately - just explains why I didn't think I could go to you about it before I left."
He hesitated, speaking the next words slowly and hopefully not sounding patronising or anything. "I always thought you were brilliant. You and George, the things you think up. The ways you make those jokes of yours worl. You do things that shouldn't even be possible. I always admired that. But I can't...you won't accept me back unless I go home, unless I give in to dad and act as if I'm really sorry for those things he accused me of. Right? It's all or nothing, isn't it?"