Our dogs are the main reason that we dig holes in the ground in rain (typical!) or shine.  They love to do what they were bred to do.  Not only do they demonstrate their natural instincts, but many of them are also our partners in conformation, agility, obedience, rally, tracking, therapy and even herding.  Although earthdog is based on instinct, it still requires obedience and willingness on the part of a dog to work as part of a team with a handler.