I can't believe this. It absolutely works. Why didnt I know this years ago when I has six chihuahuas at one time???
I have to thank this site for a recommendation to use
Pet Corrector as a training tool. I couldn't find it at my local pet supply store, but I did find
Stop That!, which is also compressed air but with added pheromones.

My home is blissful! I staged a knock at the door by my grandson, which would have elicited a frenzy of rapid, loud barking. I gave the command, "No, no bark!", and did a quick spray. Both dogs scooted away, but immediately came back quietly on reward voice w/o barking. Hours go by, I use the can once more. Again I stage another knock. Miss P opened up with one shirt bark, and all I did was make a hissing noise with my mouth and she immediately quieted down. In fact, the kids were playing loudly outside the door and both dogs were totally uninterested! It's like they needed that discipline to be able to relax and ignore the high energy that the children have.
I'm very, very pleased. Anyone with a barking issue, you MUST try this!