Though I don't reveal my preparations to them, I get to at least casually know some of my neighbors. If there's any warning that things are going South I'll advise them go stock up with non perishables and then come see me. I have enough equipment and weapons to make quite a little "neighborhood watch" with some serious teeth.
I wish I could say that I'd have neighbors I could trust to give a gun to, but sadly I don't have much faith in their integrity. Not only that but I have found a couple needles tossed into the wooded section of my yard along the street with an assortment of trash like beer cans.
I'm holding out for the market to tank and plan to buy a house in a better area. Hopefully I can do that before something catastrophic happens.