i can understand a certain level of cluelessness and ignorance about the dangers of second-hand smoke, and the need for people to change their existing patterns of behaviour. we're talking about a substantive change in how people behave and act, here. it's going to take time, education and effort to get people to stop doing this.
but, i can't forgive people that push back after being educated about it, that refuse to learn or that refuse to care.