The dogs need to learn to stay focused on their job to keep their handler safe. It's really important to teach them impulse control around objects that they are drawn to such as balls and squeaky toys. If a service dog was tethered to a child, and someone dropped a ball and it rolled past the dog, it is a dog's nature to chase the ball. Impulse control is an extremely important skill for the dogs to learn. Watch the video below to see two of the dogs practicing this skill.