Everyone on a boat, more than likely, has a ditch bag and has put some serious thought into what it contains and the various reasons they may have to find themselves using it... The ditch bag is simply a good measure of common sense for those of us who know that in life (especially at sea), well, shit happens.
Back when I taught skiing it was (again) simply common sense to have an emergency kit in the trunk of the car as winter storms, sub-freezing temperatures, avalanches and mountain roads made for the very real possibility that driving down the mountain to do some shopping could very well become a survival experience and being prepared could spell the difference between surviving or becoming one of those nasty surprises found by some unsuspecting hiker come the spring thaw...
As much as I wish there was some place you could hang out where there was not some sort of disaster waiting to happen, when you look at the big picture... anywhere you go has some sort of disaster (either man made or natural) in the waiting. Whether it be hurricane, earthquake, or even the dreaded zombie holocaust, there is no place out there that is not some potential shit hitting the fan scenario just waiting to happen... Hey, it's a scary world!
You can think of "Bug Out" as the definitive ditch bag foundation for land bound folks as Scott puts it all together in a simple, organized and thoughtful way that avoids the whole frothing at the mouth lunacy that most people associate with survival issues.
To say this is a good book would be something of an understatement and for the record it simply sets a whole new standard for books of this ilk and sets the bar at an impressive height. Other than that, I'll simply add that it and the information it contains make it a needful book...