1 Fit Mutt

I dare you to go outside with your dog and start running. Chances are, either you or your dog or both of you will be out of breath by the time you reach the next street. How often do you exercise your dog, really? And I don't mean taking a walk around the park or tossing it a ball a couple of times per day. I mean real exercise that wears your dog out - the type that, when you're all finished, sends your dog straight to its sleeping spot for a...