The deaf old storyteller always told new stories in the old teahouse at the end of the alley. A young man in the audience noticed that the old man always poured tea into an empty tea cup, and long strands of hair floated on the tea. At the end of each story, he would touch the boy's umbrella handle and say: "Before you close your umbrella on a rainy night, first look at the ribs to see if there is any hair that does not belong to you."