You tell your friends that when their ears ring 24 hours a day they just may wish they had worn hearing protection. I started wearing it a bit too late and now I wish back when I was a young man I would have worn it because I have Tinnitus, mine is a constant hissing noise. I was wearing hearing protection before the problem started but noise damage to your ears is cumulative and the damage that is done is always there and one day out of the blue, bingo, tinnitus. Wear your hearing protection.