Without it being in the chamber of a shotgun, I don't see a loose cartridge posing a risk for children or anyone else. I guess a toddler could bite it and ingest the powder and shot, but that doesn't seem a realistic risk for older children. A relative of mine, while at my home, found (unfortunately) a loose 12 gauge 00 buckshot cartridge that had rolled under my workbench and totally freaked out. This person is very anti-gun, the kind that seems to think a firearm can jump up on its own and start shooting people, so anything firearm related seems to set him off. Was I wrong in downplaying this issue? I just don't see, realistically, what harm could have come from an older child finding this. To my knowledge I have never before left a live round unsecured, but I do think that my relative greatly over reacted. Am I wrong?