Ya, no doubt bob. The Aurora Colorado theatre shooter passed 2 closer theatres to his house because he knew his selected target was a designated Gun Free Zone building. Ya, Gun Free Zone signs dont seem to be very effective do they? If someone is willing to kill numerous people i dont believe he or she is going to be too damn concerned about a sign saying he cant be carrying a gun. Its just total lunacy. All that sign does is keep lawful concealed carry people from bringing a firearm on site. Well, legally that is anyway.