My friend is driving around a violent sex offender, what should I do?

DEAR ABBY: My friend of eight years has her 55-year-old son living with her. She has been driving a man around who she told me is a friend of her son’s and she knows his family. What she never mentioned is that he’s a registered violent sex offender who was just released from prison.

She knows how I feel about this issue. Sex offenders are not allowed where we live because there are children here. I am very upset, and I told her to never call me again or come to my home. She brought the man to her home for a cookout. Children live on both sides of her. She has been trying to talk to me, but I have walked away. I feel hurt and lied to. She seems to not care about protecting the children in the neighborhood. What should I do here? — INCENSED IN INDIANA