Study examines why dog owners don't always clean up their pooch's poop.

"Sh*t happens." And, if you're a regular walker, your shoes (and nose!) are probably very aware that much of it is due to dogs. But how do dog owners normally handle the doodoo? We will let Professor Gross, the author of this poop-tastic study, introduce the topic in his own (very well chosen) words: "To be sure, at first glance, dog walking seems straightforward. Walk the dog, let it poop, then walk the dog home. But this simple description raises a fundamental question: why it is that t