Disclaimer:
If you are one of the easily offended and professional victims who always have to take things as an insult to one perceived under-represented group or another.
If you are the kind of person that claims to want to hear the views of others and then gets shocked and offended when you realize there are other view.
If you complain to strangers about their conversation that you are not a part of. If you dramatize your dislike for smoking or other behavior you dislike.