Q nods sadly. "Apparently," he says. "Still, if the pain gets too bad Severus, please just say. We can stop anytime. I don't want you to overtire yourself." You're still not completely healed, no matter how brave a front you put up, he adds to himself.
"Whenever you say Severus," Q grins at him. "Toast, I can manage. And I'm a dab hand at opening tins." His expression sobers and he leans in to look and listen closely. He picks up a few shreds of cabbage and examines them carefully. He picks up the knife. "Certainly Severus." He awaits the word to begin.