Big or Small I can handle it. Whether it takes miles or just a quick game of fetch to keep your dog content I'm ready. My Australian Shepherd always loves new friends as long as they're willing to play. Every time I come home I take him out to play fetch and at least a 30 minute walk to that he just wants to lay down instead of running laps inside or chewing on walls. There are no bad dogs, just too much energy and boredom. More Chew toys and more excercise will make any uncontrollable dog happy just relaxing. With some patience and a little determination any dog can go from being hell on four legs to a sweat little angel ready to please.