What do Kamsa in hindu mythology and Cronos in Greek mythology have in common?
Cronos - Cronos swallowed the kids born to his wife/sister Rhea fearing the prophecy that his own kid shall overthrow him from his throne. Kamsa killed his nephews and nieces immediately after they were born fearing the prophecy that one of his nephew would kill him.
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And as per prophecy Krishna kills his uncle Kamsa in the end.
Moral of the story: Castrate your brother-in-law or use condom or put your sister on pills or least use your brain and dont put your sister and her hubby in same room.
Check more comparison mythology stories here