Probably not part of the "Really Stretching UNIT Dating" series.
The Doctor had been here before. She knew the whole world-and-mirror-of-worlds bit. On past visits, she'd met an engineer who wasn't quite Leonardo, and a cop who wasn't quite Dirty Harry. Nevertheless, she still hadn't been expecting this.
"Sorry," she said, "Just run that past me again."
The moustached figure in the red tunic with gold frogging scowled. "I said, I am Brigadier-General Sir Andrew Angus Hogswatchnight Stockbridge-Lambert of the Sto Plains Intelligence Taskforce. And if you are an extra-, intra-, ultra- or infra-terrestrial with designs on this world, then I have four words for you.