I stopped at a place one time that had a handwritten sign out front that said "Gun Sale."
It was like a rummage sale but had a few misc. guns in the guys garage.
I picked up a Marlin .22 and did the same thing. Pulled the bolt back and a live round came flying out.
I brought it over to the guy and told him and he said "huh! good thing one of them kids didn't shoot anybody"
I felt like slapping him upside the head.