I babysit my sisters childern. Thier father sufferd from very bad mental problems. There are three of them and they are not normal kids. I worry about the middle girl. She has no responce to punishment (like sitting in the corner, and then when she gets out she is back to writeing on the walls!) I have notice her self inflicting pain and wonds to her self. She is four and she will through temper tantums and bang her head on things. Today I caught her scratching her self on her leg and it all ready was damaged. When I asked her what she was doing she started to fake cry and said my son hit her. But I was right there and he did no such thing. Is there somthing wrong with her? Now I worry about all the times I put my son in the corner because she said he hurt her. Is there some thing I can do about this.