The glove hand holding a screw once got caught in a rotating hand drill chuck, which drill I was using at the time to fasten wooden sides of the kid's "sandbox" together in the backyard. In the time the brain told the other hand let go of the trigger on the electric drill my fingers, in the glove, were grotesquely "wound around" the chuck. The kids were startled. I was startled. Fortunately, after I unwound, I walked away with only obvious bruises and internal joint sprains. It was a close call, a particularly scary moment, a teaching moment, and a crisis averted by sheer luck.