Possible that someone in that family had no clue it was a grenade? Possibly a suicide by grenade attempt and either the father intervened or the kids tried to? Who knows.
My childhood best friend and I were VERY good at getting in and out of places we shouldn't be. There were a few of those place out west. One of those adventures involved a vacant firing range where someone had left one of these-
We were smart enough to be upwind when discharging it and waited for it to cool off before picking it up. I was dumb enough to get a lot of residue on my hands and eventually wiped an eye.
My childhood best friend and I were VERY good at getting in and out of places we shouldn't be. There were a few of those place out west. One of those adventures involved a vacant firing range where someone had left one of these-
We were smart enough to be upwind when discharging it and waited for it to cool off before picking it up. I was dumb enough to get a lot of residue on my hands and eventually wiped an eye.