Meglos and The Doctor in “Meglos”

Ten thousand years. Cretins. Morons. Half-wits.

Yes, they've not been very clever, have they, unlike us.

They probably won't even hit Tigella.

Well, if my calculations are correct, they certainly won't.

Your calculations?

I inverted your control setting. If he starts the countdown, he'll destroy himself, as well as you and me and, well, the whole planet, of course.