I don't, because I've always worn custom-designed earplugs that bring down the decibel level for the last 12 years. I do take my hearing very seriously, and never blast my ears out - even when I go out to the clubs to party, I'll bring them if I remember.
However, I do know a few DJs that play huge clubs every night and their hearing has really gone - so some of the wedding planners I deal with that also use them are always complaining that they're BLASTING the speakers way too loud, simply because of the damage they've done to their ears over the years...