DOCTOR: Yes, well I'll tell you something that should be of vital interest to you, Professor.

GOLD: Well, what?

DOCTOR: That you, sir, are a nitwit!

IANTO: ...Jack? What do you want me to say on the death certificate?

JACK: Good question.

IANTO: She had quite a few deaths in the end.

JACK: I don't know. Death by Torchwood.