Regulus was pleased that at least Gryffindors were learning some diplomacy, although he was sure that it wouldn't last long if he kept prodding, but he refused to get into an argument here.
He snorted. "Of course you have. My brother attracts other Gryffindors like a magnet. I'm sure he'd find them even on a desert island, and you are a Gryffindor, because it would impossible for you not to be with that robe."