Last night my ex showed up at my house trying to drop off her dogs again. Last time I dog sat, her Great Pyrenees totally destroyed my brother's art collection, furniture, and yards. I told her nope, and she went ballistic. She told our 8 year old son she was going to shoot his f&#cking dog. She told him that my brother and I don't care about him, or his sister. She told him I was screwing my previous EX, and all his Mom's friends. She has a tumor on her neck, so she did like she does often and told our son that he has cancer, and I don't care. She is homeless, and has physical custody. She constantly says she needs money to feed the kids. She has disenrolled the kids from school. I gave her several thousand dollars to obtain housing. She says she paid credit cards with the money, and threatening to move to Mexico. I have told her that I will charge kidnapping if she tries to leave the country. I love my son very much. I have never talked her down to him. So, lawyers of Reddit, what should be my next step?