If you're a parent of young children who's been toying with the idea of bringing home a furry friend in the form of a puppy, you've probably already weighed several of the more obvious pros and cons of the situation. For instance, you know that certain breeds, such as Labrador retriever puppies, are better suited to family life than high-strung breeds such as border collies and Irish setters. You also likely know that, except for very small toy breeds, dogs do better when they've got at least limited access to the outdoors, such as a small yard or nearby park.