The Impossible Planet

DOCTOR: (talking about the TARDIS) I don't know what is wrong with her, she's sort of... queasy, indigestion... like she didn't want to land.

ROSE: (deadpan) Well if you think that's gonna be trouble, we can always get back inside and go somewhere else.

(The Doctor and Rose laugh.)

ROSE: Well, it could be worse. This lot said they'd give us a lift.

DOCTOR: And then what?

ROSE: I don't know. Find a planet, get a job, live a life, same as the rest of the universe.

DOCTOR: I'd have to settle down. Get a house or something. A proper house with, with doors and things. Carpets. Me, living in a house. Now that, that is terrifying.

ROSE: You'd have to get a mortgage.

DOCTOR: No.

ROSE: Oh, yes.

DOCTOR: I'm dying. That's it. I'm dying. It is all over.

ROSE: What about me? I'd have to get one, too. I don't know, could be the same one. We could both, I don't know, share. Or not, you know. Whatever. I don't know. We'll sort something out

ROSE: Everyone leaves home in the end.

DOCTOR: Not to end up stuck here.

ROSE: Yeah, but stuck with you, that's not so bad.

DOCTOR: Yeah?

ROSE: Yes.

DOCTOR: I'd have to settle down. Get a house or something. A proper house with, with doors and things. Carpets. Me, living in a house. Now that, that is terrifying.

ROSE: You'd have to get a mortgage.

DOCTOR: No.

DANNY: They're the Ood.

ROSE: The Ood?

DANNY: The Ood.

ROSE: Well that's ood.

DANNY: Very ood, but handy. They work the mine shafts. All the drilling and stuff. Supervision and maintenance. They're born for it. Basic slave race.

IDA: Well, we've come this far. There's no turning back.

DOCTOR: Oh, did you have to? No turning back? That's almost as bad as "nothing can possible go wrong", or "this is going to be the best Christmas Walford's ever had".

DOCTOR: We've found something. It looks like metal. Like some sort of seal. I've got a nasty feeling the word might be trapdoor. Not a good word, trapdoor. Never met a trapdoor I liked.

IDA: The edge is covered with those symbols.

ZACH: Do you think it opens?

DOCTOR: That's what trapdoors tend to do.