He nods slowly, and... well, he feels sort of terrible for agreeing so readily with negative thoughts but as far as he can tell they are perfectly right.

"I'm gonna be honest with you... me being here, being a teacher, it's a stunt. On my part, and on Xavier's. We've been trying to prove that even heartless killers like me can be model citizens. But I guess I've never been one anyway." His foot is starting to tap. His head is starting to pound. He sighs, "And my nose is going haywire, you think you're well enough to come outside? I need a smoke."