A summer before leaving for college I worked second shift at a Ford Motor Co. metal stamping plant. There was a large posted sign with a number showing the consecutive days without accident. When I started the number was around 60 or so and for awhile it kept going up one digit each day.
Then one afternoon I walked onto the shop floor and the number was set at 0. I asked what had happened and was told that during the overnight, third, shift a fellow had started working on the die in a 100 ton press and forgot to put in the safety girders. The machine cycled and he was turned into a flat wet blot.
I'm pretty sure the robot in this story from Germany was powered up when it was supposed to be powered down for service, or the fellows working on it did something else contrary to safety guidelines. Machines remain just machines, despite how sophisticated they are.
The guy was hitting on the robot and it killed him in a huma-phobic rage.
about three weeks ago at the Toyota plant in Georgetown Kentucky a worker lost an arm to a machine there and the plant has done its best to cover it up.