Jack was nearly about to reach for his vortex manipulator instead when the Doctor had decided that he wanted to cooperate. Great. He sighed and lowered his arms. He wasn't playing around, and this wasn't fun for him anymore. "That was Christmas, right?" Jack wasn't sure where he was going with this, but no one would soon be forgetting the Christmas that the Titanic nearly crashed into Buckingham Palace. "Maybe you should." He turned his attention right to John, staring hard at him. "I like clever men who don't make stupid decisions."

The Doctor's reaction made Jack's eyebrows lift in surprise. He wasn't sure what he'd been expecting, after all, who knew how long that valve had been leaking before the two of them stepped in to fix it? "..How bad is it?"