My mother moved in with me and my two children, 5 & 7, about two years ago and it has turned into hell. She acts as if my 5 yr old son is actually hers. He as become very beligerent to me and my 7 yr old daughter. He does not behave at the dinner table. He throws food, kicks people from under the table, gets up, etc. If I try to discipline him, my mother gets upset and tries to feed him like a baby. If I put him on time-out, he will first tell me no and that he only obeys Grandma. If I do manage to get him to sit down, she will run to him as soon as I turn my back. My boyfriend (their father) moved out shortly after she moved in because of the drama involved and the fact that she went off on him for also trying to discipline my son. If I try to help them with their homework, she gets upset like I am moving in on her turf. If I am in their room reading a book to them at bedtime, she will try to lure them out to her room. She talks and treats me like I am stupid and can't do anything. My mother and I have never gotten along and she left my father when I was 14. I moved her into my house from my sister's as they were taking all of her money and charging up her credit cards. My other sister out of town truly believes that I abuse her and both of my children. As she takes the kids to school and picks them up, I value her help as I cannot afford after-school care. However, this isn't worth it anymore. What do I do??