Gun safety rule number one: treat every gun as if it’s loaded. Unfortunately, most gun owners—and even firearms professionals—take that to mean “always unload your gun.” That ain’t it. Treating your gun as loaded means always following rule number two: never point your weapon at something you don’t want to destroy. Like, say, your hand. To wit: “A gunsmith at a League City [Texas] gun shop lost his pinkie when a handgun mistakenly thought to be unloaded went off.” Note: the “handgun . . . went off.” Not “when the gun store employee shot himself in the hand.” Anyway, you might wonder, how’d that happen?