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Once an old man along with his 30 yr old son were travelling in a train. The son was unusually happy enjoying the view whizzing by outside. He admired all the trees and moutains flashing and moving past his window that all small things made him jump with joy. He was retaining the old man's attention by talking and showing him all the things he saw. The co passengers were undoubtedly surprised at the young man's attitude. They kept wispering amongst themselves and lauging at him. Then all of a sudden the it started drizzling. Everybody moved away from the window to avoid getting wet. But the young man was enjoying getting wet. A newly married couple were among the commuters seated in the vicinity of the young man. The wife wispered to her husband," I think he is crazy. Just look at him getting wet. Ask him to close the window." The husband obliged and rudely asked the young man to close the window. The young man's face fell and he closed the window pane. Th old man who noticed all this kindly said to the husband," You see my son had an operation. Just half an hour ago he was given vision being blind 30 yrs of his life."