I guess I'm thick skinned or something. I've had brass go down the back of my shirt, get trapped against my skin by the frame of my glasses, even had one get stuck on top of my ear. But I always manage to get the gun set down safely.
And my wife is, um, abundant, and has had brass in her bosom, and same thing - gets it set down safely. I guess it is a matter of priority. Or, since we expect it, it isn't a big surprise.
That said, proper clothing is a must. Long sleeves, at least buttoned up to the collar button, and a hat.
I saw one guy was going to shoot his revolver from a reclined position, almost the old reclined Creedmore position. Well, he was wearing shorts. The gap was right next to his bare leg. Before anyone could stop him he popped one off. Nasty, nasty burn.