"I'm not going to hit you," he said quietly, an edge of venom to his voice. "And if you need punched, go ask Rob. Or House. Or Gwen. Or Ianto. Or Alcuin...although I doubt he'd hit you. Or anyone else walking and breathing so I can see just how replacable I am," he snapped, zapping the last of the bannister in place. "Is that off it enough?"