NEW DELHI, January 3: Amartya Sen was at his humorous best at the formal function at Delhi University this morning. ``Many of the convocations I have attended have been formal, forbidding and boring,'' he said. ``I want to make this informal and friendly.''Reminiscing about the days he had spent at the Delhi School of Economics (DSE), the Nobel laureate said, ``When I left Jadavpur University to join DSE in 1963, a Calcutta newspaper reported that Professor Sen has left a university to teach in a school. I believe news is always approximately correct. Better be approximately correct than precisely wrong.'' The audience broke into an applause at this.``When I landed at the Dumdum Airport after being honoured as the Master of Trinity College, a man ran up to me and said something I will never forget. He said he was happy that I had become the governor of Trinidad,'' the professor joked.Today's felicitation ceremony also marked the golden jubilee year of DSE. Sen described his DSE days as ``one of my fondest memories for I have never had better students''.Many of his former DSE students, including FICCI Secretary General Dr Amit Mitra, former chief economic advisor Deepak Nair and Head of the Economics Department of DSE K Sundaram, Chairperson of Air India When the compere requested Sen to share his ``pearls of wisdom'', he laughed and replied: ``I know I have been cracking jokes all along. Now I must earn my keep''.