The film "Contagion" raises an interesting question of what you would do if a highly contageous illness made grocery stores off-limits and the police force was unlikely to come when called.
I came home from the theater and pondered our sparse supplies. You don't need to subscribe to survivalist publications to wonder whether it might be wise to stock up on a few things.
Oddly enough, we were fairly well-supplied with water. (That's not always the case.) The food supply could have stretched to perhaps a week at most with only one meal a day. The weapons arsenal is not bad but could be expanded. We're a little low on barbed wire and animal traps.
So the larder needs food that can last a long time; the staples of life so to speak, such as beer, Pop Tarts, Jack Daniels, jerky, and Twinkies.
I haven't surfaced that list with the family. I'm sure they will approve.