"They did last time." In the pleasure prison, where everything was horrible and he spent the entire stay keeping himself too drunk to really do anything stupid. "But if they don't... if don't remember, just send me home. Things will sort themselves out in a few years."
Except if he doesn't remember this, he won't remember them either. That, like so many other things, is a problem for later. He's got bigger things on his mind, anyway.
"Maybe you lot at Torchwood can think of something clever to keep this soul of mine from going to Hell."