 Fey has a scar a few inches long on the left side of her chin and cheek , the cause of which remained unexplained to the public until a 2008 Vanity Fair profile by Maureen <unk> , and subsequently in her autobiographical book , where she revealed that " during the spring semester of kindergarten , I was <unk> in the face by a stranger in the <unk> behind my house " . 
