The first time I went to a range as a kid I had an H&R 22. I walked into the main building, paid for my lane, then went out to the line. Nobody said anything about eyes & ears, & I didn't know any better. Common sense should have kicked in, but I've never been known to have much of that. I shot a 100 round box, & as it was a hot Texas day, I'd had enough. My ears were ringing, but not near as bad as they would be for the next three or four days! I had a concussion headache that no aspirin could kill. I think that the ringing in my ears that I still have to this day can mostly be attributed to that stupid little adventure. I learned a valuable lesson, though.