Another function of Schutzhund clubs is to identify dogs that should not be trained in Schutzhund. Schutzhund is a challenging test of a dog's character, and not every dog, or even every GSD, is up to the challenge. The training director of the club has a responsibility to the dog, handler, club, and society to constantly evaluate every dog and to decline to train any dog with questionable character or working ability. Training a dog that does not really want to work is stressful and frustrating for all parties involved.