You guys have heard of snake aversion training haven't you? In many areas - including SC - you can go to "clinics" where using either taped or temporarily defanged pitvipers plus a shock-collar they can teach your dog to avoid going near anything that smells like rattlesnake, copperhead, or water moccasin. This is a reputable link https://snakesareus.com/snake_aversion_training
