Dogs for personal protection or working dogs originated from livestock guardian dogs, selectively bred by Russian breed experts for working abilities. As a result, they excel in obedience, territory protection, and personal protection, and are very intelligent. As such, they make perfect house dogs. They do not need any complicated training to learn basic house rules, and treat the owner with the same great respect with which their ancestors treated the herder. These dogs were introduced to the worldwide sheep breeding community with great success. Guard dogs must be able to work as a team to protect sheep against predators; thus excessively aggressive CAOs, as with any other dogs, cannot be members of the pack, and will not pass this simple test for compliance with the breed origination purpose.