I was at a machine shop/ welding shop getting some minor repairs done. The guy was machining some fancy piece of pipe/valve assembly out of some fancy material. (Older guy, loved to talk.)
It was a rush order for the Navy. He showed me the blueprint for it.
“Now the blueprint says 3.5 -inch. I’ve built two of these valves before and they were both 3 inch. And nothing on the ship is 3.5 inch. Stupid engineers. And of course I can’t get ahold of anybody, and they need it for shipping out on Monday. But - it MUST be a 3-inch.”
I’m not sure if he was ragging on the engineer or trying to convince himself. He seemed pretty sure of himself!
Well, saw something in a similar vein where someone insisted a 220VAC elevator had to be DC.
My father smiled and said something like, “okay.” and let them go to it.