It was starting to get to him. Not in the sense that he was angry, but curiosity and mild bewilderment were taking over. The Doctor rather liked being a little bewildered. Made things interesting.

"Listen. I'm an actual not-from-Earth alien, and my people invented that technology. Weren't too keen on sharing, either. Not that I agreed with a lot of their policies. But still. You - really know a whole lot of people who have something like that?"