Russian Wedding roulette

A russian wedding turns into a contest when Arthur Dotsaev congratulates the bride and groom in a special way. With the safety on, he says his best wishes when putting a gun to his head, pulling the trigger, nothing happens. The bet is that the other guests don’t dare to immitate this.
One of them tries to show his courage though. And then disaster strikes.
The guest is rushed to the intensive care unit, Arthur was being arrested and now has an imprisonment possibility for 10 years ….