I don't know about that, I know a couple of guys who used to work as roofers and had serious injuries as a result of putting a nail thru their hand. Oddly enough, they never once had a problem with their firearms.......
Many moons ago, I was almost shot by a fellow worker who was using a nail gun nearby.
A small chip of wood had lodged in the safety switch on the front of the nail gun, which locked it in the firing position. The guy had his finger on the trigger as he turned towards me, and accidentally let off a round that missed my head by a couple of inches.