I know
I'm going to be experimenting with insanity when my order arrives.
So far we know that the insane can spend time dreaming, calling gods, entering magic sites (the Void Gate), and becoming prophets. I haven't seen any references to anything costing gems, involving troops, or movement yet, but...
Well now, what happened is, one of our base commanders, he had a sort of, well, he went a little funny in the head. You know. Just a little... funny. And uh, he went and did a silly thing. Well, I'll tell you what he did, he ordered his planes... to attack your country. Well let me finish, Dmitri. Let me finish, Dmitri.
Well, listen, how do you think I feel about it? Can you imagine how I feel about it, Dmitri?
From one of the funniest conversations in cinema, from one of the finest movies ever made, IMHO.