Hi. When Barkley started barking for no apparent reason, I used to spray him in the face with water. He squished up his nose, licked his face, and the barking stopped. It took a total of three times doing that. After that, all I had to do when he started yapping was put the spray bottle on the table (or wherever he could see it). The barking stopped completely. Tried it on my nephew who refused to spray his yapping dogs. When I sprayed him in the face and he stopped carrying on as well
So you see, it works on humans as well as dogs!!! Try it.
Ronnie