INSANE

Once a psychiatrist asked a patient as to how he turned insane all on a sudden.The patient replied very cooly that it was  because of turn of  various events in my life.I married a widow who had a girl of 20years out of her earlier wedlock.My father married that young daughter.So technically my daughter became my mother and I became the father in law of my father.They gave birth to a daughter and  she became my sister by relation but I am the husband of her grand mother too.So from that side she became my grand daughter.
Now we had a son out of our wedlock.so my son became the brother in law of my father and I became the maternal nephew of my son.
The doctor could not bear any more and shouted at him"please stop all these rubbish.That idiot will make me mad too"