Sooner or later you’re bound to run into someone you would classify as “brainwashed,” or “extremist,” or simply “crazier than a shithouse rat.” It doesn’t really matter what the basis of their particular fanaticism is (they might even agree with you on one issue or another). What is relevant is that they are absolutely convinced of their ideas; there is no margin for doubt. I find the best option is usually to break out the kid gloves and remove yourself from their presence as tactfully and quickly as possible.
But what do you do when they follow you? Proselytize, hound, badger, or actively try your patience?
In short when is retaliation, censure, or even belittlement an option? Is it ever?