Harry the Cavalier King Charles Spaniel male and the real-world dog training in public places and around various distractions: other dogs, people, carts, cars, noises, etc.

Chopper is presenting to his fellow canines the fine-tuned way of walking on a treadmill. Dogs learn a lot from each other just by observation and mimicking that's why it's so important to show them what we DO want for them to do so they have a good role model (you, the pack leader) to follow.