He had mentioned it; one of the rare times she was talking to him without the other also being around. They'd gotten into an argument over the best methods for stabilising the paradox, and then the other arrived, asked what they were talking about, and nearly imploded in furious horror. And that was the end of that discussion.

"You both assume that they are worthy even of dislike," she mutters. She's never understood the Doctor's apparent taste in screeching ninnies—at least that's how it seems to her, based on the ones she's met. —and yes, impersonating the one is one of the stupidest things you've ever done; with the benefit of hindsight, you wonder how you thought it was a good idea to begin with–