Big Dog Exercising Mad Easy

I'm old, Mister Brown The Rhodesian Ridgeback is young & powerful, so from a new pup he was taught send away (after 'rabbits'), and run up hills, as well as come back. That way I could make sure he got all the exercise he'd usually get running around with a pack of Ridgebacks, instead of getting flabby by only loyally following his old lady around.