"I travel. I pick a place and I just..." The Doctor made a gesture with with his hand, indicating a direction. "...go there. No working necessary. Lots of running though, I think I mentioned that bit. Never underestimate the importance of good running shoes."
He scratched the back of his head.
"Or sometimes I end up places. I'm here for now anyway. The City needs people, can't be a city without it. Why it needed us, that's the question. I can understand pulling in a Doctor. Loads of people call for doctors, sometimes I even answer. So, what is it that you do, Abe?"