Funny, I went shooting yesterday, at an indoor pistol range, to the left of me two lanes down was a young couple shooting a rented fully auto MP5 to the right of me was a guy was shooting in the last lane next to the wall. The girl went to shoot the MP5 for the first time on full auto and the barrel I assume climbed on her, she shot too high, striking the metal bracket holding the cardboard backstop. Now I have had people shooting some loud stuff and I may flinch a little, but that metal on metal "bing, bing" sound scared the heck out of me. The guy to my right said he saw something strike the wall at around the 5 yard mark. and I felt a fragment of something strike my face near my left cheek. Felt like it was smaller that a BB, did not break the skin but it felt like I was looking at frying bacon when the grease popped. I was wearing eye protection, and now I always will. I think I'm avoiding crowded ranges also.