I just thought that I would clear up why I sign everything off Boo. It has nothing to do with Halloween or frightening people like some of you may think. A few years ago, my husband and myself were watching the kids film Monsters inc. Those of you that have watched the film will know that the little girl in it is called boo. my husband started calling me Boo after this and it is the nick name he still gives me. So it is as simple as that.