- Leela: These 'taxes', they are like sacrifices to tribal gods?
- The Doctor: Well, roughly speaking, but paying taxes is more painful.
- Mandrel: There's no life on the other planets.
- The Doctor: Really? How many other planets have you been to?
- The Doctor: [told to go steal] Suppose I refuse to go?
- Mandrel: You die.
- The Doctor: It was just a passing thought.