Childermass realizes rather late in the game that calling Norrell his master might give the lady the wrong opinion of him. He's always been rather old-fashioned, as has Norrell himself, and so he's never paid the word all that mind. There are times when the man treats him as though they have just stepped from another time, in fact. But he could see how someone might get the wrong idea, considering what it is he's supposed to be propositioning her for.

It's just as well that Nancy's dazzled by the car instead. Childermass nods slightly, just the once, and then hits the button to unlock the doors. He would get out and open it for her, but he could very well lose his car that way, someone slipping in and stealing it from him, in a neighborhood like this. Better safe than sorry, even if it's not particularly gentlemanly. He does flick her something of a smile as he clicks it open, however.

"Come on, then," he says, tipping his hat to her. "It's better not to keep him waiting, if we can help it."