Fair point there, Dave.
It's also true that nowadays you cannot depend on simple politeness for decent behaviours (like not lighting up where there were non-smokers around), as you could not so long ago, certainly within living memory. I don't know how selfishness and crassness crept in, but it has, and it seems that one has to legislate now against many things that would have been impolite, even unthinkable, before. I am vociferous against PC madness, but I can also see the need for some of it (I know the new smoking legislation has nothing to do with PC, I amk simply extrapolating to behaviours generally).