Many years ago I was shooting a Ruger Pre-MK I .22 pistol. The only way to lock the bolt open on that pistol is to hold the bolt back and engage the safety while doing so. I had the bolt locked open, loaded a fresh magazine, and pushed the safety off, which caused the bolt to close. I pointed the pistol at my target and pressed the trigger. Nothing. Still pointing the pistol down range I took my finger off the trigger and looked at the gun. The safety appeared to be down in the fire position and the gun was in battery. I pushed down on the safety again, finger still off the trigger, and the gun fired. Luckily I still had the gun pointed down range at my target. Not all unintended discharges are negligent.

__________________
Hello Cleveland, Rock and Roll