Dogs competing in dog sports, such as flyball, agility or Schutzhund, must be trusted in an open field, off leash and surrounded by other people, dogs, hot dogs, and flying discs. This requires more focused attention on the owner and a better recall than that found in most household companion dogs, and more advanced training than that required for formal obedience.
RutRoh is an English Sheep Dog, born Deaf. He is a wonderful dog and family companion, however, being deaf and living in Dallas, his safety was one of the reason he was brought to us for training. His owners didn't want to have restrict him to be on a leash all the time. They wanted him to be able to run and play and have a way to communicate with him when he was not in view of them.
Every dog needs to learn to walk on a leash. Besides the fact that most areas have leash laws, there will be times when keeping your dog on a leash is for his own safety. Learn how to introduce your dog or puppy to the leash, then teach him how to walk properly on the leash, even beside you on a bike. A loose leash walk teaches your dog not to pull or lunge when on the leash, making the experience more enjoyable for both you and your dog.