Take for example Carry Verse. Hospital said that he was dangerous. But he said that he was a new man (a jw), and wanted to build up a new life.
What do you think? If he moves into your neighborhood, how would you feel?
For me, I would treat him as normal as possible (like greeting at the store and on the street), but still will be very cautious around him. I would not be alone with him or would not let my children go near him.