If you work the gun show circuit for a few years you will see this kind of stuff so much that it won't even surprise you any more. People, in general, are incredibly stupid. The really amazing thing in my experience is that the noise level in most shows is SO LOUD that people have to yell at each other to be heard. Then a shot goes off - and the silence is instant and deafening........ you could suddenly hear the light ballasts buzzing overhead. Most of the dealers I knew kept a loaded handgun under the table (as I did). But we would NEVER EVER show it to ANYONE. I mean NEVER. I remember working a show in Decatur Ill. about 1992 where a crazy woman grabbed an AR from a table and ran off with it. She almost made it to the door.......... (no, she was not shot but she was in need of an ambulance before the cops got there.....) Do not mess with gun dealers.