I lived in a country for many yrs formerly behind the block and this is one of the questions that drove that decision. How does that happen? And when it does, how does that actually play out? Well, I recently actually experienced an incident with neighbors where this actually happened. Yes, it was fear based that he ratted out others. Historic trauma certainly played a role too. I have to say that my old neighbors were much kinder to him in the end than I was believing I could be. It was a very powerful experience. Life does go on, yes a period of shunning happened and it was addressed directly with that person. Even tho some days feel like a war, cooler heads and forgiveness prevailed. I know it was just a taste test of what Europe lived but it was a very powerful lesson for me and proved we are on the right side of life . . .Stay strong. We got this.