After seeing their dogs make progress during training, clients sometimes confess to me with a sense of relief that they previously thought their dogs were dumb. Typically, they had equated their dogs' behavior problems and lack of responsiveness to obedience commands as deficiencies in their dogs. It is understandable; if a human just stared at you when you told him to sit down, or if he repeatedly peed on your floor despite multiple corrections, you might come to a similar conclusion.