Not exactly sure of the details, such as access/entry/power restrictions, but some worker managed to get between the machine and the intended screw hole.
That was back in the 1980s.
And in the 70s the Russians had a tank with an autoloader mechanism that sometimes would load the weapons soldier into the breach instead of the intended shell if he got in the way in the cramped area.
Oh My Gawd! You mean he was literally, actually, screwed with a screw-driving robot!!