I say, you’re very good at this. Do you drive these things for a living?
—No, I save planets mostly, but this time I think I’ve arrived far, far too late.
DOCTOR: You haven’t? There hasn’t been anyone? You know.
SARAH: Well, there was this one guy. I travelled with him for a while, but he was a tough act to follow. Goodbye, Doctor.
DOCTOR: Oh, it’s not goodbye.
SARAH: Do say it. Please. This time. Say it.