If you have a problem with your dog barking, I recommend trying a citronella dog collar. The colloar is like any other collar that is worn around the neck, when your dog barks, citronella is released which causes your dog to stop barking.
What an innovative humane idea to help a dog stop barking. If you have a problem with the loud, disturbing barking of your dog, give citronella dog collars a try.