like i said exercise, i can see someone saying !!!!! hes really working it, but to consider your dog a working dog just because he hits the springpole hard is a little dumb to me. SCH, french ring, OB, agility, WP, these are things i think you can consider work. and everyone of them takes THE OWNER and DOG time to PRACTICE and LEARN. not just let your dog loose and see how much stamina he has on a treadmill or focus only on his physical atribuets.