Obligation Nasruddin nearly fell into a pool one day. A man whom he knew slightly was nearby, and saved him.
Every time he met nasruddin after that he would remind him of the service which he had performed. when this had happened several times nasruddin took him to the water, jumped in, stood with his head just above water and shouted: “Now I am as wet as I would have been if you had not saved me! Leave me alone.”
Source : from the book – “The Sufis” by Idries Shah