At first I wondered if this is a serious topic. Guess it is. For what it's worth, I and many others have done a whole lot of shooting with no hearing protection at all, and we're holding up just fine. Shooting a .357 indoors may leave your ears ringing for a while, but they'll recover. Sometimes I wonder how any of us survived without bicycle helmets, seatbelts, biohazard suits and warning labels on everything we touch.