4:22 The trainer said that the Border Collie was addicted to exercise and couldn't stop. 😄 This Border Collie likely has come to regard exercise as work. If it was work, that meant it shouldn't stop unless the owner specifically stopped it Border Collies were originally bred for herding sheep . As of today, Border Collies are still used as work dogs on farms. Border Collies have strong work ethics and are known for being workaholics - the instinct to work is hard-wired in their DNA. Canine experts recommend AT LEAST two hours of exercise for a Border Collie. This dog breed is known for their high energy level - and high intelligence level too. They do best with energetic owners who love outdoor activities and thrive in an environment where they are physically and mentally stimulated. 😄