I went yesterday. I saw a couple of things I really wanted to take home.
My friend got yelled at by one of the vendors for touching his guns. He picked up the pistol and gently racked the slide. The guy started yelling at him for trying to take his guns apart. We both just stood there, thinking he was kidding. After my friend said he was just racking the slide, the guy said "No you're not. Why would you do that? You're obviously trying to take the gun apart. That's my gun. Can you read?"
There was a piece of paper under the gun that said not to dry fire the any guns. What we did not notice was the rest of the wording that said do not handle any guns without permission. Maybe that was because it was being hidden by the gun on top of it? I guess he should have kept reading after he picked up the gun, then put it right down. I think it still would have been to late, as the dealer would have probably started yelling about him trying to steal the gun.