He was probably too drunk to remember the rule about being drunk and handling guns.
I was at a friend's house for a party. My friend decided he would show off one of his shotguns to another friend… after having had one too many beers. Boom! Wasn't supposed to be loaded; blew a hole in the floor and just missed his motorcycle in the garage below, not to mention his friend's feet. Pretty much everyone at the party decided it was time to leave, over 30 people cleared out! When a friend wants to show their gun to me, I make sure they're sober.