Anyone with a little training knows that you always treat a gun as if it's loaded, even if you know for a fact it isn't. The same is true of old grenades. Following is the sad story of a dad and his kids rummaging through grandad's old stuff. I'm assuming that dad found the old grenade and decided to see what would happen if he pulled the pin. Well, he found out. Both kids were injured, but the father was killed.
Indiana Father Dead After Old Grenade Found in a Grandfather's Belongings Explodes
Indiana Father Dead After Old Grenade Found in a Grandfather’s Belongings Explodes
An old family heirloom turned deadly...
washingtonengager.com