I remember in the Army in Germany, we had an ad hoc “class” on vehicle maintenance in the middle of winter on the hardstand (parking lot) during a snowstorm. The grizzled old sergeant delivering the “class” at the colonel’s “request” just stood there swearing and saying it was the stupidest thing he had ever seen in his Army career, which encompassed the Kasserine Pass and obviously had seen more than his share of misadventures.
Was far from unhappy when my military obligation was in my rear view mirror.