Assuming the Worst

I teach classes on de-escalation and self-defense. One of the points I try to hammer home to people in my classes is to not assume the worst in someone just because they argue with you. Most of the people I teach have first-hand experience with helping and serving people of all backgrounds, from all different cultures. And people in the business of interacting with people from all walks of life, especially in stressful conditions, tend to become jaded, de-sensitized to others' feelings