"Come by!" "Lie down!" "That'll do!" are some of the phrases you'll hear during a stock dog trial. These dogs can only be border collies. They start training at around nine months and are ready to compete at around age two or three. But it's not just the dog that needs training, but also the handler. John Wentz raises 420 sheep in Portage to train dogs and their handlers for the sport. He does meat and wool on the side. Otherwise, 400 of his 420-head are traveling Wisconsin to be used in competitions or agritourism.