Tell me, how is Lucius Malfoy these days? I expect he's delighted his lapdog's working at Hogwarts, isn't he?" "Speaking of dogs," said Snape softly, "did you know that Lucius Malfoy recognized you last time you risked a little jaunt outside? Clever idea, Black, getting yourself seen on a safe station platform. Gave you a cast-iron excuse not to leave your hidey-hole in future, didn't it?