DOCTOR: When I tell you to stop... you really should stop, babes.

KID: Or what?

DOCTOR: Or you'll regret it. Because I have met so many versions of you, Kid. And revenge is just an excuse. Because your cold, filthy heart just likes to kill.

KID: Well, Doctor. If you insist.

KID: What?

GARY: Lost him. They know it's a fake.

DOCTOR: Hiya.

KID: Don't move.

DOCTOR: What? In case I do this?

KID: No! Big mistake. Ah!

DOCTOR: See, the thing about holograms is... they're kinda soft. And they fizz and they crackle and they're kind of no use. Unless you're me, and you convert them into hard light. In which case.... a hologram can hurt.

DOCTOR: How many people did you want to kill? Three trillion? How about we try this three trillion times, hmm?

SUSAN (OC): Stop.

SUSAN (OC): Grandfather.

BELINDA: No.

DOCTOR: Bel.