I don't study up before I fight something. [Gryffindors never do. Don't let that Defence Against the Dark Arts fool you.] But what would I do, at the moment?

[He spreads his arms, makes a show of looking down at himself. Grotty prison garb, skeleton bone structure. He looks back up at her.]

Collapse on him. Think heavy thoughts. And call for you. That's my best chance, at least until you get me that meal you've promised.