An off leash Chihuahua? Unbelievable?? Not with Sit Means Sit. Darin Shepherd of Sit Means Sit - Atlanta is seen here with a 16 week old Chihuahua named "Underpants". At Sit Means Sit, even little dogs deserve to have fun and freedom.   For more information on Sit Means Sit Dog Training in Atlanta Georgia see: The Largest and most successful U.S. based dog training company in the history of the United States: Become a dog trainer at our successful dog training schools: Learn about our amazing, waterproof, lifetime guarantee (no strings attached) dog collar: Watch our amazing dog training videos. Nothing like them on the planet, and we even invite you to look around and try to find some! Find a Sit Means Sit dog training location near you!