How often do we witness or know about the uncomfortable or unlawful, but do nothing?
I just saw a photograph of a man choking his wife in a restaurant, yet the diners around the couple did nothing. Have you heard a couple arguing, followed by the sounds of potential physical violence on the other side of a wall? Did you keep quiet and cringe? Or walk away?
Fear is the emotion that freezes the brain. Fear shuts down critical thinking. Fear lets you be controlled.