reply to post by reluctantpawn
well, going without water for a single day will cause problems, three days will kill you. Bad water will kill you quickest.
Hunger (a day or two) will send many people into an irrational state, 3-4days will turn most people a little crazy and five days is your limit if
you're also trying to stay alive / keep moving.
Shelter is easy to improvise, in most climates a human can survive about a week of hard rough sleeping before getting 'rundown' and developing a flu
like state. In most of the world a human can sleep well with little or no kit (i speak from a lot of experience on this) however as you rightly state
sever cold / rain or heat can cause a very quick death - i suppose if you live in somewhere that gets very cold you consider that aspect when making
your bag. I've had a few wet weeks, weeks where everything got wet every night even my sleeping bag (hehe thanks Holland) without it causing any
real problems, the human is tough little animal.
in a sitx shelter will likely be easier to make / improvise than food or water and my list is meant only as a list of whats most important in a
BoB.
oh and yeah people go stir crazy without other humans around, it's kinda cute in a way, we all need each other - that's why if i ever need to bug
out i'll wait until it's so bad that my friends know it's time to go as well

Might get me in trouble, waiting too long might be my biggest
mistake but i'ld rather no life at all than one in which i had abandoned my friends.
basically, no water is CERTAIN to kill you, no food will MOST LIKELY kill you while not having shelter MIGH kill you. besides, the odds of finding a
house to shelter in at night are high, that the house will have a few tins of food is much lower while the chance of getting clean drinking water are
very very low (unless you're prepared for it with filters and catchment traps)