When the 'Katricians' themselves are quoted as saying the crime rate is gonna go up if they do not get more free rent, then it is time to get your concealed-handgun license, warns the radio ad by Jim Pruett, who co-hosts a talk-radio show and owns Jim Pruett's Guns & Ammo, a self- styled anti-terrorist headquarters" that sells knives, shotguns, semiautomatic rifles and other weapons.