Arun Chandran , a wise woman once sat in the audience and cracked a joke. All laughed like crazy. After a moment she cracked the same joke again and a little less people laughed this time. She cracked the same joke again n again. When there was no laughter in the crowd, she smiled n said" when u can't laugh on the same joke again n again, then why do u keep crying over the same thing over n over again. Forget the past n move on.