But what really suprised me was the amount of people who would grab a gun off of a table without asking permission. Then they would point it out into the crowd with their finger on the trigger. I don't believe I saw anyone check to make sure the chamber was empty.
Say something to one of those uneducated goofs and see what happens. They act like YOU'RE the one who is an idiot. I think the dealers don't say anything because they're afraid of losing a sale.
I think the best way of approaching it is say something quietly to the guy. If it's loud he feels compelled to defend himself and/or act like a bad ass. If it's just between the two of you, he might get the message.
Some people don't want to get involved, but he cooks a round off (it does happen), you can be involved real quick, and probably in a way you don't want to be.