An elderly man in town is known to wear nothing under his coat. what about family humiliation from his exhibitionism?

Humiliation: First the man needs help and even if that means going to the court system. His actions should be reported. Once exposure has taken place the idea is not to hide from it but to bring it out in the open and discuss it openly. Not that the man is bad or evil but that he has a problem. Seeing it in that light will help you calm your emotions and not magnify the problem even more.