Q makes a face and also drops it. "If you say so Severus," Q says, concerned. "But if the pain gets very bad, please tell someone. It could be a sign of bleeding or pressure build-up or something. Anyway, not good, so don't pretend it isn't happening." He sounds as severe as he can.
"All right," Q flexes his hands, doing an aerial arpeggio. He moves the book back to the desk, giving it a little pat and takes the knife. He lays on half of the cabbage down on the table, slicing it in half again. Q frowns and begins to slice, aiming for a size about the thickness of a toothpick. Done with the first part, he steps back so Severus can see his work. He flexes his hand again. "It's been a while since I've done any fine work." He smiles ruefully. "Hand's a bit stiff."