If you are the happy owner of a dog, you have certainly shared many pleasant moments with your pet. The unpleasant part of being a dog-owner comes when your family and neighbors are disturbed by the continuous and annoying barking of your best friend. Nobody can deny the fact that barking is a natural thing. If a stranger approaches and the dog barks in order to warn about the danger, that is its natural behavior and it deserves to be appreciated. If the dog barks because it is trying to communicate something to the master (perhaps it is hungry, sick or it wants to be taken out for a walk), this is also natural. However, a dog that barks constantly, at the slightest sound, is a great discomfort for everyone around it, especially if it happens during the late hours of the night, when most people are trying to rest.