John flashed a tight smile. "I know. We made a few mistakes the first time around. Jamie was still coming around from regeneration, and I promised him something I had no way of keeping. That's sorted now. We both know it's only for as long as we're here. Which hurts like a sonofabitch, but it's the truth." He looked down, a tight little knot in his stomach at the thought. "Thank you, though," he added quietly. "Means a lot y'know? That you look out for me. Jack's a lucky man. At least where you're concerned anyway."