one of the sardarji, lets say ABC sing is celebrating new year party with his friends at the top of 20 storeyed building. They are having fun with dance and drinks. at the mean time a waiter shouts "XYZ singhji, your house caught fire and your wife and son also get died on that incident." ABC singh get very shocked and he get so panic that he jumped from the top of the 20 storeyed building. as he reaches at 10 th floor, he remembers he has got no son. as he reaches at 5th floor, he remembers he is not married too. as he reaches at 1st floor, it is too late, he remembers that his name is not XYZ sing. ok hope you get smile in your face.