[ Excuse you, but those are not extra pounds, those are... are... look, maybe he's just big-boned for a dragon! ]

Have I been what? [ Draco frowns, brow furrowing at the short list of stereotypes. ] Why, I never. Have you heard of any dragons doing any such thing, at all, around here? Do you see anything burning? Do you see any stolen coin? Ha, bed on it, as if I had anywhere to put that much coin to begin with!