Got a small nick on my face once firing semi-jacketed hollow point from my .357. Found the shard, but haven't had it happen since. So I guess, meh, it happens?
Oh, yeah. Backsplash definitely happens when shooting to a steel backstop. My mistake was, I think, supposing that everything I ever felt in that context was backsplash. Now I think some of it over time was backsplash, some wasn't. The stuff that cut me or left a mark was definitely backsplash, as one happened with a Ruger Mark II, and in the other case, I was minding my own business and had no line of sight to the semi-auto shooting in the next lane.