Comment by TacticalCoder

"The normal are not detectably sane"

I remember reading an essay explaining that patients not sharing the political beliefs of the physician running the asylum are more likely to be classified as mentally ill. A mental asylum paid by state money is usually going to be in the hand of physicians who never see anything wrong with the state (not biting the hand that feeds you and all that): so when for example a libertarian arrives, he's much more likely to be classified as mentally ill than if a socialist arrives.

So it's all arbitrary and, moreover, you better put the odds on your side by trying to determine what are the physicians' political beliefs and pretend you have the same ; )