There are so many things going on in this video.
The first is handing a pistol grip shotgun to someone who doesn’t have the experience to handle the recoil. Even scarier though, is that sweep of the barrel across everyone standing there. Sure, he might have only had one round in the chamber – but how many accidental shootings started with that exact same thought.
Never, under and circumstances point your weapon at people. Treat every weapon like its loaded, every time, all the time.