One of the most loyal and obedient breeds, the Sheltie makes for a superb companion dog. They are sensitive and incredibly intelligent, making them easily trainable and a natural fit for life with people. They are great at herding, guarding, tracking, and performing tricks, making them incredibly versatile. However, being one of the smartest breeds, these dogs need stimulation, or they may get bored and attempt to occupy themselves in negative and destructive ways. They also need a surefooted leader, otherwise they may see themselves as the alpha and try to lead you. .