One of my friends was the first Police officer, thus became the coroners 'officer', on the scene of a decap. The store manager had removed the interlocks and modified the limit switches so a 'lift-plate' scissor lift cycled continuously between the floors of a frozen food retail store. One of the Saturday lads slipped/tripped and got caught between the end of the lift and the floor, it tore his head off. He suffered PTSD and ended up unemployed, the black & white evidential photo's were bad enough.

Lockout and safety systems are too easily abused by 'get it done' & 'efficiency' idiots, in the power industry where big machinery, high pressure superheated steam and high voltage were the usual risks no-one on the staff dared to interfere. The refit contractors who did got beaten, like the one who almost killed me inside a boiler front by bypassing all the locked out CDA (connected a Nitrogen cylinder) and activating the burner carrier we'd just climbed across, our 3rd man on the outside beat him senseless, then broke his hands so he'd remember not to ever do it again...