As a kid my buddies and I found a .38 special bullet in the street. So what did we do? Why naturally we pounded on it with rocks to see if we could get it to go off. I think the primer was a dud cause it never did. Talk about being disappointed.
We had an idiot in the military who found a .50 cal cartridge and decided to drill a hole in it for a souvenir.
They had his funeral a few days later. He could have bought all the dummy .50 round cartridges he wanted at the local Army Surplus store, but No-O-o. He wanted a real one!