Treats are used as information to the dog during the initial training phases. Once your dog completely understands the new lesson, you no longer need to offer treats for that behavior. As you work through the proofing process, you will continue to challenge your dog and offer treats for his commitment to the exercise. For example, when you ask Fido to “Sit”, he immediately plops his haunches on the ground. Fido understands what “Sit” means. Instead of offering a treat, tell him he is a “Good Boy”. However, if Fido is practicing “Sit” and he maintains that sit while another dog runs by, Fido is demonstrating he is committed to the “Sit” and should be offered a reward.