DOCTOR: You know, one thing you can be certain of with politicians, is that whatever their political ideas, they always keep a well-stocked larder.

DOCTOR: When I meet a regime that needs to import savage alien life forms as security guards, I begin to wonder who the real criminals are.

JO: Those creatures aren't really savage.

CONTROLLER: Exactly. They are simply guard dogs. They just do what I tell them.

DOCTOR: You mean there aren't enough humans around that will follow your orders so blindly?

CONTROLLER: That is not what I was saying.

DOCTOR: Isn't it? Then what you're saying is that the entire human population of this planet, apart from a few remarkable exceptions like yourself, are really only fit to lead the life of a dog.

(Yates has a drink of the wine.)

JO: That wasn't very kind of you.

YATES: RHIP, Jo.

JO: Pardon?

YATES: Rank Has Its Privileges. Thank you.

CONTROLLER: I can assure you that this planet has never been more efficiently, more economically run. People have never been happier or more prosperous.

DOCTOR: Then why do you need so many people to keep them under control? Don't they like being happy and prosperous?