One morning a boy walks in to class late His substitute teacher asks him "Where have you been" He replies "Throwing pebbles at a car" 15 minutes later a girl walks in the teacher asks 'where have you been' she answers "throwing pebbles at a car" 2 hours later a young girl comes in all bruised and dirty the teacher asks "Let me guess you were throwing pebbles at a car" she answers "No miss, I am pebbles"