"Aye, pleading insanity. I've heard that one before. Always said myself that you had to be crazy to be an Auror, must go the same for Hogwarts' Healers, eh? But firewhiskey couldn't hurt." A smirk twitched upon the corner of his mouth. "Let me guess, it's the secret ingredient in Pepper-Up potion. Knock the kids out so they'll stop whinging about their colds."