High school girlfriend worked a year as a aide at McLean's, the famous Boston mental hospital for the rich and famous. That's exactly how she put it. "The staff are crazier than the patients". But we got useful quantities of psychopharmacological substances out of it, so we didn't care. Neither did the staff, who were probably high half the time themselves.
In forty years as a trial attorney, the most fun I have had are the two occasions I have cross-examined a psychiatrist in front of a jury. They were both full-blown nut cases, whose testimony was riddled with contradictions, and it did not take much scratching to uncover it.