Harry: Come along, Doctor, we're both reasonable men. And we both know that police boxes don't go careering around all over the place.
The Doctor: Do we?
Harry: Of course we do, the whole idea's absurd!
The Doctor: Is it? You wouldn't like to step inside a moment, just to demonstrate it's all an illusion.
Harry: Well, if you think it'll do any good.
The Doctor: Oh yes, it'll make me feel a lot better.
Sarah Jane: Doctor…