That did make him smile. "Since I saw you ... oh, my goodness. I don't even know. I don't really think I told you much of what I got up to, honestly. What about ... hm. The Judoon? The Daleks? Sontarans? Vashta Nerada?" He didn't really see any problem telling her; if they couldn't leave, in theory, no one could ever get to her to harm her.