And then there's the old guy who loaded stuff at the local machinery auction. I bought a manure spreader, was especially pleased that it had a built-in jack for the tongue. He chained to it to move it, and didn't lift before he started pulling- the jack folded like a cheap card table.
Never had one with a built in jack before. Still don't.
Apparently there were other complaints, too- never saw him doing that duty at the sale after that, and he died not too long after. Guess he was starting to "lose it".