I have been around hunting dogs for 25 years and have trained many pups. Over the years in experience, I have found that a small child can leash break a puppy in heartbeat. By having a child walking the puppy, the puppy is not intimidated by a child’s size like is an adult’s. A puppy will follow a child easier whereas they usually pull against an adult. So the next time you have to leash break a puppy let a kid have a try.