That video has been out awhile I remember seeing it about 2 years ago. But I do agree why in the heck would you look down the barrel of a shot gun you just had a miss fire with?
I was sitting there for about 5 seconds or so (which feels a lot longer when you are just sitting there) feeling stupid for doing the "point in a safe direction for 30 seconds" thing I was taught to do.
I had that "yeah, whatever, I'll do it like I always do it but this is stupid" look on my face all the way up to the point the gun went off...
A sticky mechanism would probably have hung up with the first shot.
I'm not an expert reloader, but those who are told me the first tool to buy was a real good flashlight, so that I could visually verify the powder levels in each round, verify that the primer pockets & holes were clear, etc. A small bit of the corncob media used to clean shells can get caught in the primer hole, and smolder for several seconds.
That's why the old rules still work.
The last time a gun ( rifle in this case ) failed to fire at the range, my Bro in law was highly amused at me just standing there, still in firing position, while I counted aloud, slowly, for a Minute. ( if it's going to go off, I want it shouldered & in control )
He really laughed a few minutes later, when I ejected the round, looked at it like it was a viper for a while, then picked it up to find no dent at all on the primer.
Upon field stripping, I discovered the firing pin had been removed. Hmm.
Funny things happen when you loan out a gun.
it's worth noticing that the hole in his hat brim was quite small. At that range, heck, up to tens of feet, the shot charge is one pretty solid mass. The old wives tale that a shotgun will clear the alley wall to wall without aiming........ is an old wives tale. It's just not true. You have to aim. Shot spreads, but only slowly, inch per yard? more or less depending on choke..