"Oh, so you're choosin' to be in detention," Ambrose said, doing his best to mimic the other boy's Irish accent. Dropping the accent he shrugged, turning his palms upward. "I guess I understand that in theory, but in practice I don't really understand it. Though I suppose they've never confused a Gryffindor for a Ravenclaw, and you lot have just about proven why."
Running the Gryffindors he knew through his head, he realized that there was one exception, though he didn't suppose she counted. "Well, except for that one mudblood, of course. But she's not here anymore, so I'm only talking about the ones of you that haven't managed to get yourself snatched."