[the Doctor stares, so blown by what he sees as stupidity, he hasn't got the words. give him a moment, enjoy the brief silence]

Temporary annoyances. Tell me, how often do these temporary annoyances kill someone? Injure them, even? Are the closets and food and warm beds worth that, because really, that's what your royal farmers count on. Bribes. I know a species that clings to its victim's face as it slowly digests the brain, but they're kind enough to feed their victim pretty dreams. 'Cos why suffer a struggling meal when you can please it and take your sweet time? Oh, but at least they're inspired. The absolute--

Hold on, you mentioned mirrors, over there, what do you know about "over there?"