I've never encountered steel coming back at me, but I always have glasses on anyway. Without my glasses I probably could not tell which direction I should be shooting. I also wear a baseball cap, but that's just to protect myself from shell casings. And more recently I started making sure that I button up my shirt all the way to the top button after a 40S&W case went down the front of my open shirt and burned me slightly on the chest. Its enough to make me want to stick to only shooting revolvers.
People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf.”
― George Orwell