Almost impossible. The “extremes” is what we have look forward to and make an effort to stand up to those extremes.
You lose all of your “goods” , fire, theft, floods, you are run out and glad to get away with your life . How do you prepare? Do you really have a single cache? A series of said caches, setup for your use. No car, no truck, can you, in reality, get to that cache with your family? Oh you haven't been able to get around to it?! Too bad. If you have and you are able to get to the location is it still safe to recover the cache? How do you prepare! Make a plan.
Group dynamics demand a few strong personalities. Leaders of such groups most of the time are not the real decision makers you want to count on for your life. Most are too combative. Part of the secret is stealth. Emptyness. A shadow is what you want. Under stress, and the longer it goes on, it will build, unless plans have been made to cope with the situation and “jobs” are well defined. Not fantasy jobs. Condescending attitudes destroy more groups than anything else I have seen.
You have all heard the expression “think out of the box” , forget the damn box. Forget what is outside of the box. None of that counts, that is what I have found. How to prepare?
The problem is a lot of yes men. ill informed members. Getting along to get along and be a part of the group. Most do not have any or very little experience in dealing with complex planning working with a group. A defined active thinking through the problems no one has even thought of . If you a part of a group, the number one rule is: Do not be afraid to say/ask something really stupid. The why, the how, and the when, those questions will lead you to a better understanding and cohesive planning. You have to be comfortable enough with your group so that each one of you can deal with the other laughing at you, because that will help you be one. Not one person in the group should be excluded. Never be afraid to ask anything. How do you prepare. Make a plan.