The Doctor blinked, surprised. Where had that come from? He'd thought to make John feel a bit better, not a bit ... well, insulted, he supposed. The Doctor tugged at an ear, embarrassed.
"Right. Right. Of course. Sorry. Sometimes I forget that you're not really used to this whole idea of ... Well. Nevermind. Anyway, we should probably get you up to speed. For starters, you should know that there's more than one of me running about. There's five, to be precise. My eighth incarnation, my ninth, my tenth--that would be the one you dreamed about--my eleventh, and me. I'm sort of part way between ten and eleven. There's also a man claiming to be the twelfth me, but we have our doubts."