Snake Avoidance Workshop. RattleSnake Season is upon us, help Keep our precious pets safe, K9 snake avoidance is fast and effective way to help save our dog's life. Andy Andrews has been training Snake Avoidance for nearly 60 years. He uses SIGHT, SOUND, And SMELL, to engage all senses. He pairs it with uncomfortable static signal, similar to a tens unit that is paired with the sight, smell or sound of snake the dogs causing the dogs to want to avoid the Snakes.