Wow, I thought people only used fear mongering to sell life insurance! I best go invest in some Spam... Cool idea though, any excuse to avoid going outside sounds nice to me.
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I take my coffee how I take my women: bitter and overbearing.
There are some cheap survival food options online that have high calorie content and will last for a few years without spoiling. But yes, food is definitely worth it, even just to have something to munch on and ease the stress of a survival situation.