Well, I have to be somewhere, and here I am, talking to you. Where better to be, at the moment?

[ Absurd, perhaps, from anyone else, but the Doctor means it genuinely. In over a thousand years of existence, he's certainly visited a few places he'd never care to return to, and not every place is pleasant or even hospitable, but this place is altogether different. He's trapped, which usually would upset him, but the company's been pleasant so far and the mystery of it all has him preoccupied. ]

Oh, here and there! I'm an all across the universe sort.

[ Never mind where he's actually from is gone. Never mind the how and the why it's gone, either. ]

And you, Shepard? Doc is new, by the way — well, it's been a long time. Let's trial it, I don't mind it.