Be sure you have a solid STOP command to go with this! My Golden would chase stray cats off our property and he was going after one once when it ran across a dirt road just as a truck came barrelling down same road. I hollered DOWN and heard him skid to a stop just as the truck roared past in front of him. Whew! That command saved his life. I tell you my heart was in my throat till the dust cleared, I called him to me, and I saw that he was fine.Of courseI have fun torturing the neighborhood cats