I guess the balance goes to how far you trust your fellow man.

You asked how many (if any friends and family know about my "preparedness")? Not any immediate neighbors. My wife and her family. The "what to do when" scenarios have been discussed among us. As for friends, there are some with whom these discussions have taken place, but most have not. It doesn't take very long to find out how most people feel about "preparedness". If they don't think about it or don't prepare, I don't waste my time. I am not the Shepperd.