Well...I am not sure of how JimmyF was referrencing RP&P but it sounds to me that he is referrencing it in a sardonic way. IE there are official rules (RP&P) but then there are the unofficial rules that are actually practiced, until the practice is brought to light. In Vietnam for example there were zones designated as "Free Fire Zones" and it was SOP to kill virtually every living thing encountered in these zones "free of charge". If I recall correctly Mylai was in a "free fire zone" but was brought to light.
I think you may have to crack JimmyF about his referrence to RP&P.