"Birth" joke
After making a trip of South India, Santa Singh, his wife and his son were returning to Punjab in Tamilnadu Express.
Santa Singh was occupying the lower berth, his wife the middle berth and his son the top most berth in the train. When the train stopped at one of the stations on the way back the son requested Santa Singh to bring him a cup of Ice cream to which Santa readily agreed. When Santa and his son returned they found that a South Indian who couldn't understand Hindi had occupied his son's berth.
Outraged, Santa Singh called the TT and asked him to help. TT requested that he could not understand Hindi/Punjabi so it would be better if Santa Singh explained the whole situation to him in English.
Santa Singh explained, "That man sleeping on top of my wife is not giving birth to my child."
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