"...During my visit, I asked questions that a corporate drone could never answer regarding cat food. JFP answered all completely and honestly.

When I see a business like this, I become a walking advertisement for it."

Wow, what more could you ask from a customer? It always goes to show the golden rule works in business as much as in anything else in life. If you treat your customers right, they will repay you for it by extending YOUR  presence wherever they go. Moreover, if you try your best to answer their questions (you may not know everything, but you can always do your research and get back to them), they will appreciate your effort and spread it through word of mouth.