It surprises me that some people don’t walk their dogs, because having to go out in all weathers is one of the things I like about having dogs. However wet and windy it is outside, it’s (usually) not so bad once you actually get out there. And walking helps prevent canine obesity as well as human obesity. Dogs that are left on their own in a yard to exercise are more likely to be obese than dogs that have an exercise regime, according to a study by I.M. Bland et al in 2009. When dogs are left in a yard, even if that yard is more than an acre in size, they just don’t seem to do enough exercise.