[So twitchy. Don't think Sebastian hasn't noticed. After a long pause, as if he's thinking very hard about something, he snaps the pocket watch closed and tucks it back into the inside pocket of his tailcoat.]

No, I do not. You are quite on edge, if you do not mind my saying so, sir. Perhaps a cup of tea might serve to calm you down? [This smirk is not mocking you, Mello. It's just a polite, professional smile. Really.]