"Maybe this is where barter comes in?"

Well, yes, I guess it does depend on how pretty the neighbor's daughter is. I will always have something to share, just depends on what is being put on the table I reckon. LOL

I don't suppose anyone in need is going to have much else that is going to interest me if things go bad. Otherwise why would they be coming to me in the first place?

Really for many the question will be how effectively can you hold off an army of desperate people once they discover you have something they want/need and are willing to kill you for?

But this is really getting rhetorical. Most likely the situation we are going to be faced with will be acute, severe, and not likely just something we can sit and wait out.