The statistics on sanity are that one out of every four Americans is suffering from some form of mental illness. Think of your three best friends. If they're okay, then it's you.
How can a doctor judge a woman's sanity by merely bidding her good morning and refusing to hear her pleas for release? Even the sick ones know it is useless to say anything, for the answer will be that it is their imagination.
I always made a point of telling the doctors I was sane, and asking to be released, but the more I endeavored to assure them of my sanity, the more they doubted it.