Having a dog has been a fun and wonderful experience for everyone in your family. In fact, it has been so rewarding that you are now seriously thinking of getting a second dog. However, it is important that you really think this decision through, because having two dogs can be an entirely different experience from having one.
For the health and wellbeing of your dog, training should really not ever be considered an option when owning a dog. Well trained dogs are more likely to be behaved and listen, be void of behavioral issues, be good in public, and are less likely to bite. Owners also have a much closer connection with the dog when the time is taken to form a relationship through training.
Herding is one of oldest canine activities available. It has real world applications and is still in place for viable farm assistance in many places. For urban individuals, herding has become more of a training activity for competition for those breeds of dogs with natural instinct.