The stories of alcoholic beverages historically being safer to drink than unfermented ones are apocryphal at best; however, as any 17th-century sailor would tell you, the addition of some spirits to potable water that's been sitting around for too long will make it much more palatable. Liquor distillation was originally invented in part for medical purposes, and alcohol can be used as a solvent to dissolve medicinal herbs -- and also to knock out patients during good old-fashioned fallout-shelter surgery. High-proof alcohol can be used as an antiseptic, and it does a great job of cleaning wounds and preventing infection.
Revealingly, however, many doomsday preppers’ fears are not based on speculative, sci-fi-style catastrophes but on disasters that have already happened. “Watch a documentary about Katrina. Look at something about Sandy, years afterwards. Look at Puerto Rico right now,” Scott Bounds, a member of N.Y.C. Preppers, says. “You have to realize that people are not going to come take care of you. You really have to be able to take care of yourself.”
Hate to break it to you, but your dog probably has a better chance of making it through a total societal collapse than you do. A quick Internet search of "dog survives" lists everything from drowning to being shot, from bear attacks to war -- whereas the closest you've ever come to "surviving disaster" is getting your wisdom teeth pulled, and even then it was only with the help of a cadre of trained medical professionals and a carton of the strongest painkillers on Earth.
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