Today, at the Salem Market, a lady told me about a great training tool to use:
"Canned air"- or "air- duster".
She trains dogs for disabled people, and told me they use this tool to teach a dog not to bark.
For instance , one of my young hopefuls, I took along to the market, tends to bark at every other dog passing by: a nuisance. This is where this tool comes in handy, by using it over his face every time he barks.
The air dusters can be bought in Wall-Mart in the computer section. It is used to keep the keyboards clean.
Try it.