I worked in a steel mill for several years before we had ear plugs so my ears ring 24 hours a day. I constantly hear ringing and ping-ping-ping in my ears almost to the point where I can't sleep. If it were any louder I couldn't stand it. So guys, wear ear plugs for everything. Those lawn mowers, motorcycles, shop tools, loud music, guns and anything else that makes noise will get to you sooner or later if you don't. The thing that really ticks me off is, as a union rep, I told them for years at work that we needed ear plugs and they wouldn't let us wear them. Now they want to take away what medical benefits we retirees have left. But- wear them guys. One day you will be glad you did. Good luck.