I have often felt sorry for the plight of poor engineers. Even as my fingers were cramping and my knuckles bloody from the results of some of their "bad days"!

Yeah, right.
I bought an 86 Ford Aerostar van. Full dresser with everything available. I loved it until at 100,000 the transmission front pump seal blew out. I took it to a friends shop because I didn't have a lift and trans jack. He fixed it but he told me that the engine would have to come out soon because the rear main was starting to leak. I bought a repair manual to "brush up" on the procedure. Under "Engine Removal" this is what it said. " Lift vehicle. Remove front suspension, left and right. Remove chassis crossmember and drop engine from bottom of vehicle". I traded two weeks later.