The Doctor: Yes. Yes, I have actually rebuilt a TARDIS before, you know. I know what I’m doing.

Idris: You’re like a nine-year-old trying to rebuild a motorbike in his bedroom. And you never read the instructions.

The Doctor: I always read the instructions.

Idris: There’s a sign on my front door. You have been walking past it for seven hundred years. What does it say?

The Doctor: That’s not instructions!

Idris: There’s an instruction at the bottom. What does it say?

The Doctor: “Pull to open.”

Idris: Yes, and what do you do?

The Doctor: I push!

Idris: Every single time. Seven hundred years. Police box doors open out the way.

The Doctor: I think I have earned the right to open my front doors anyway I want.

Idris: Your front doors? Have you any idea how childish that sounds?

The Doctor: Oh. You are not my mother.

Idris: And you are not my child.

Series 6, “The Doctor’s Wife”