[He offers an awkward twitch of a smile for what could be a joke but might possibly be the truth, but then his expression soon flattens as the Doctor steers his focus toward the matter at hand. Cracking blithe jokes like so many sunflower seeds seems the safer choice to him.]

Well, I'm in law school. [He throws his hand up in a vague gesture.] Or I was in law school. I don't know how helpful the rules of the American legal system will be here, but that's what I've got.