One of the most frustrating things about walking some dogs is when they pull constantly on the leash, straining against the owner, often resulting in a tug of war between human and canine. The human usually loses! Often the dog will yank the walker in a new direction when he detects a scent. Did someone say "SQUIRREL?!" Oh Yikes. This is no fun for anyone - the owner becomes increasingly tense and the dog gets more and more frustrated as it strains against the slow pace of