Just reading this makes me get a huge lump in my throat because I would WANT to help them SO bad!! Lately I have made sure to keep a "before" picture in my purse. I think I would try to sweetly tell them what has worked for me, pull out my picture, tell them about my FTS family members who have cured diabetes type II, and give them the website address.
My daughter works part time as a cashier at Kroger. People are always chatting with her about their "new diets" as they check out with their groceries. More than once she has written down the FTS website address, shared about my success, and told customers to take a look at it. (That makes me so proud of her.)
Doug, maybe you could add a link to the site where we could order a handful of your business cards? That would be a GREAT thing to hand out in situations like this!