I don't mean this literally, but wouldnt it be nice if he was robbed at knife-point while walking from his office to his car today? Then, once he stumbled to the car and headed home....he got car jacked (by a huge unarmed guy). Later, as he neared his neighborhood, he could get mugged (by a guy with a baseball bat), though he wouldn't have anything to give....so maybe he'd receive a nice butt whooping. Finally, if we're lucky, the fella could walk into his burglarized home.
Maybe he'd feel differently afterwards? Nah. The point is that bad guys will find a weapon, even if it's a big rock. We should support our rights to carry and own the biggest rocks available to us.