I know I'll get slammed for this, but most mil/civ psych guys I've encountered have been one step removed from witch doctors.

I've flown with more than a couple of guys over the years that appear to have slipped through the process, i.e., more than a few standard deviations outside the norm.

Not to mention the fact that one of our pysch's who was vetting us actually killed himself... so there you have it.