I'm reading the book now, and the first thing that strikes me is that "left of the bang" means on the side before shit hits the fan, and "right of the bang" is after the fan has been shat on. While in western europe you should never say anything containing the word 'right' when you mean trouble with other units, maybe from different countries. Everyone knows right is a direction, and everything going right or alright is a good thing. In dutch in particular we even have a phrase loosely translated "This situation is going left fast." Indicating there are strong signals the situation is going "right of the bang fast."
That is even regional jargon I think. But any phrase containing "Right" isn't used over here just like your artillery don't say five in counts because it resembles the order "fire".
I haven't got time to read the book beyond the first sentences because I have driven over 600km to work today. (but I did it in slightly under 0345hrs in a 2600kg car
Update1: I've nearly read the first chapter, and get the idea. Its not so much related to my job, because I mainly arrest high risk individuals, or respond to active and deadly threats. My Information before arriving is mostly dead accurate, and doesn't offer much chance of staying "left of the bang". We are the bang and we know a scary amount of information before we turn the cars off.
In my time as a security contractor I just might have shot less rounds, if this information got to me. Probably not
This information seems to me to be more applicable to my private time off duty the on the job. As I said we are the bang(If everything turn out right). To Uniformed police and Military personnel I think the 'mindset' this book is about seems more of an enhancement or re-thinking of your awareness. Before I have time to read on this is it guys.