We have always had a bad relationship with my in-laws. Even before we got married, even before in met my mother in law, she used to send me messages pretending she is worried about my husband's well-being and saying that he has to take pills. Even before my husband and I met she was a very abusive mother. Everything points to a narcissist disorder. Finally 5 years ago we decided to cut off all contact with them. For years now she follows me and the kids around and she uses every oportunity to insult me and recently she started talking to the kids, and they are scared of her. For the past 5 years she has been sending emails filled with insults, adressed to me, my husband, my sister, my mother and even my grandmother (all of these relatives of mine live abroad). My father-in-law is practically invisible, she controls everything. We have made it clear we dont want any contact with them and in spite of that every day she comes to the playground and she talks to my children and upsets everyone. Last year she walked into the park where my husband and I were sitting while the kids were playing and she started yelling at him "Can't you see how she manipulates you?" I try to ignore her because of the children or pretend that i am making a video pointing my phone at her, i have told her to go away and she says "This is public space". But these are my children and without my consent she can't talk to them, I dont know what to do anymore so she stops following the children around, they are scared of her and i dont want that person near my children. We have reported her twice but it hasn't made much effect. I appreciate your insight and advice.