"Oh, he doesn't. But I couldn't very well namedrop Winston Churchill. It should keep them occupied for a few hours trying to straighten out the chain of command."
When the cab came to a stop, the Doctor pulled out a small change purse from her jacket and fumbled with the money. She handed the cabbie a twenty dollar bill. "Is this enough? Thanks then. Keep the change, yeah?"
The Doctor took Steve by the hand and pulled him out of the cab having no real interest in the value of bill or how money worked. They walked for the strange little blue box, and the Doctor pushed the door in and closed it after Steve entered.