Inspector Christmas rings to ask Mrs Bradley, who writes books about crime and psychology, to help with a case:
Inspector Christmas: I've been re-acquainting myself with one of your books, an intriguing read.
Mrs B: Wait till my memoirs are published.
Her chauffeur, George Moody, helps with the crime solving and has a very casual relationship with his employer:
Chauffeur: Clowns give me the creeps, and the less said about magicians the better.
Mrs B: What have you got against magicians?
Chauffeur: I was once badly scarred by audience participation
Sometimes she gives asides to the camera, like the following after a male character has complained about the suffragettes and stated that women should stay at home:
Mrs B: Given a choice between staying at home with a man like that, or throwing oneself under a horse, I know which I would choose.
Sometimes she's just very wise:
Mrs B: There are three golden rules for bringing up children.
... pause ...
Alas, nobody knows what they are.
And, my favourite quote, about "Lady Chatterley's Lover":
Mrs B: Have a read of this, George. I think it might amuse you.
Chauffeur: Oh, yes. I heard the gamekeeper did it.