Greeves: You won't find anything in there.
Donna: Oh! How come it's locked?
Greeves: Lady Eddison commands it to be so.
Donna: And I command it to be otherwise. Scotland Yard. Pip Pip.
The Doctor: Ah! Smell that air! Grass and lemonade! And a little bit of mint. Just a hint of mint. Must be the 1920s.
Donna: You can tell what year it is just by smelling?
The Doctor: Oh, yeah.
Donna: Or, maybe, that big vintage car coming up the drive gave it away.
[the Doctor is preparing to take a lift down to a secret alien base]
The Doctor: Right then, thanks, you two, I can handle this, see you later.
Donna: [enters lift] No chance, Martian. You're the man who keeps saving my life. I ain't letting you out of my sight.
The Doctor: Going down.
Donna: Lance!
Lance: Maybe I should go to the police.
Donna: Inside!
[Lance gives up and enters the lift]
The Doctor: To honour and obey?
Lance: Tell me about it, mate.
Donna: Oi!