It poses the question would you say something to another group that you know are doing the wrong thing?
As long as it didn't put swmbo or my family at risk, these days I do. Strike rate is 50/50 as to whether I get told to F*** Off or yeah, didn't know that, thanks for the tip.
Reality is that I can get away these days with being a grumpy old wise owl bugger, so yes I say something.