Using the leash inside is a great way to create the structure that you desire.  House training isn't just to prevent the dog from peeing on the oriental rug.  House training is teaching your dog how to behave inside the home and the leash can do that for you.  Takeaway: 1. Dog Trainers use a leash more inside than outside 2. Using the leash prevents your dog from becoming hand shy 3. Great for Puppies Music: “Bad Dog” written by John Fusco and featured on his acclaimed double album “John the Revelator”