This involves the owner leaving the property and coming back at intervals varying from a few minutes to several hours so that the dog is unable to predict how long the owner will be absent and, believing that it may only be a few minutes, will be less likely to be stressed. Older dogs which are habitual barkers may be re-educated. When the dog ceases barking he should be praised. The dog should not associate the noisy object with the owner. A garden hose or water pistol may be used to hit the dog with a jet of water with the same effect but the dog must not be left wet in cold weather.
Some breeds of dog become very anxious or bored if left alone, some require high levels of exercise.