"Keep your organs down, John, I don't plan on letting you die." The Doctor had just the hint of a wry smile on his lips as he started another machine and then turned to watch his patient, just to keep an eye on him. "And I'm afraid I've never come across ghosts that were anything other than echoes, aliens, anything like that. But I'd be sure to drop you off at Torchwood just in case. Wouldn't want your ghost to get bored." He arched an eyebrow. "Well plotted porno, eh? And people wonder why I don't go in there."

Although obviously that wasn't the reason, but if he hadn't had any other, that would have sufficed easily. Jack's flirting he could deal with. Apparently he could even take John's manner. But so many horny humans at once? He'd rather not.