Thursday, I found several "expired" Ritter Sport Chocolate bars, while looking through the trash at work. The expiration date listed 12-2005, I figured, what's the worst that could happen, a bit of a stomach ache, maybe a BM with a vengeance, I've had worse. Well, I ate a whole bar and it was delicious! 24 hours later, no angry stomach, think I may throw a couple of the other bars in the pantry for a few more years.
Moral of the story... throw a few chocolate bars in with your long term supplies, nothing would cheer me up more than having a yummy snack on the shitty day that I would be getting into the supplies.
Plus if it does happen to go bad, chocolate is good for polishing mirrors...
Wildwood Survival - Fire from a Can of Coke and a Chocolate Bar