The Doctor: To you lot, this might just be a locksmiths, but H. C. Clements was bought up 23 years ago by the Torchwood Institute.
Donna: Who are they?
The Doctor: They were behind the battle of Canary Wharf.
(Donna looks completely blank)
The Doctor: Cyberman invasion.
(Donna still looks completely blank)
The Doctor: Skies over London, full of Daleks?
Donna: I was in Spain.
The Doctor: They had Cybermen in Spain...
Donna: Scuba diving...
The Doctor: That big picture, Donna, you keep on missing it.