I did have one go off, it'll startle you for sure. I was just pumping through the decapping phase of about 30-40 of them, so I was cruising pretty good at that point. That's when BOOM, I scared the poo-poo outta myself. No safety glasses no hearing protection=rookie mistake. I think it was my 3rd or 4th attempt at reloading ammo. Im lucky my boob lookers and my hearing are still intact, so yeah! for me. Now I go slow and double check my primers before I insert them to be decapped. Never have had an issue since, maybe we do learn from our mistakes. At this point in my life I have probably reloaded about 10K rounds so it's been a few years since my rookie mistake. I will try to defuse them with water or WD40 thanks for the advice.