I had a habit of not wearing safety glasses during nailing with pneumatics. I make it a point to point away from myself, to whatever degree is possible. Working one day, I noticed about 1-1/2" of a brad sticking in the paper of my as-of-yet not covered insulation. That was a good reminder of how easy it is for an angled brad to be deflected by the wood you’re shooting, and what it could do to an eye. That was a good reminder of why eye wear is a good thing.