A school teacher was asking his pupils what their parents did for a living.
Billy proudly stood up and announced, “My daddy plays piano in a whorehouse.” The teacher was aghast and went to Billy’s house and rang the bell. Billy’s father(The proud IITian) answered the door. The teacher explained what his son had said and demanded an explanation. Billy’s dad said, “I’m actually a system programmer specializing in TCP/IP communication protocol on UNIX systems. How can I explain a thing like that to a five-year-old?”