>Jim, let's say you are boarding a flight with the 5 people you love most in life, and you see this behavior going on... what are you going to do about it?

I *hope* I'm going to tell my family that we must be watchful of these characters after we get on the plane and be ready to do something if my fears are realized.
One thing I am quite sure of is that I am not going to insist that I want them off the plane so that I can feel more 'comfortable'. If it got close to that I would take my family off the flight. It's *MY* problem, not the airlines'.