I'm 59 years old, and a CCW holder. The reason I became a CCW holder was to facilitate gun purchases. Prior to Waco and the Government murders of Randy Weaver and his boy, I never experienced any problems in any of the states (SC, Ga, and Fl) I've lived in with a gun purchase. Then one day after moving back to SC from Fl, and after all of my guns were stolen during my wife's funeral, I filled out the paperwork and suddenly had to wait for the three days. Since it was just before the weekend, that actually meant four days, before I could pick up my new Remington 1100. The reason I was given was "You were born in Montana"!!!!!!! Less than 6 months later I had my CCW, and have never had to wait again, as long as I make my purchase in SC, and as long as I'm only buying a long gun, in Ga.
I go to gun shows, because my boy and I like to look, and I am buddies with some of the vendors. On occasion I have bought a few guns at a gun show, but never from an individual, since I like to have a record of purchase in case of a warranty problem. I have noticed that even the guys who have the signs up that they are "private sellers", all seem to be doing the NICS checks, already. I've even noticed that individuals who bring a gun to the shows and try to sell them are having to provide a lot of information and ID in order to even sell their guns. I have also noticed that at times, there is a fringe group or two out in the parking lot that appear to possibly be buying and/or selling guns...........which is already illegal, (at least in SC) which is why they scatter when a cop appears. So this tells me that no matter what laws are enacted, there will always be people who disregard them. Making it tougher on those of us who aren't doing anything illegal isn't going to solve any problems.
As to psychos, just how would anyone suggest they be eliminated from legally purchasing a gun? There is already a law against it (ever notice that question on the Federal Form that is already required), so are we going to restrict every type of gun sale in the odd chance that the purchaser is mentally unstable? Let's face it a true psychopath is also usually a pathological liar, they don't have any physical attributes that distinguish them from normal folks, and if they lie when they fill out the forms, is there any guarantee that the NICS will actually reject them? Maybe there should be a law passed that says these people should have "mentally unstable" tattooed on their foreheads so there would be no chance for them to slip through and make a gun purchase, after all that makes as much sense as any additional restrictions on legal purchases............especially at a gun show.