not me

I have discovered that my children have a friend, whom I have never met, that practically lives at our house! I don't know what gender this person is. I don't even know where they came from or where they live. All I know is this person's name is Not Me. Not Me is a very distructive little person. I can go around my house at any given time through out the day and find a trail of this person's distruction. When I ask my children why there is a huge mess all over the house. They all reply "Not Me!". I really do wish I could find this person and scold them. I really don't want this person at my house. My children do such a great job of making them leave before I come around to assess the damage Not Me has made. I wish I knew who Not ME's parents were, they owe me a lot of money for repairs! Not me wripped wall paper off my kitchen wall. Not Me has tore the towel rack off my bathroom wall. I don't even know Not Me, but i already think this person is a bad influence on my children. I will find out who not me is and this will be handled. I guess until then Not Me will sneak around me because I think they know I am out to get to them. This may be in their best interest because me finding them could be hazardous to their health. LOL I have told my children that he isn ot allowed to come play at our house anymore. They look at me like I am crazy. This person is about to make me crazy!