i am my own grandpa

"A few years ago, I met a young widow with a grown-up daughter. We got married and I got myself a stepdaughter. Later, my father married my stepdaughter.

That made my stepdaughter, my step-mother. And my father became my stepson. Also, my wife became mother-in-law of her father-in-law."

"Much later the daughter of my wife, my stepmother, had a son. This boy was my half-brother because he was my father's son. But he was also the son of my wife's daughter which made him my wife's grand-son. That made me the grand-father of my half-brother."

"This was nothing until my wife and I had a son. Now the half-sister of my son, my stepmother, is also the Grandmother. This makes my father, the brother-in-law of my child, whose stepsister is my father's wife, I am my stepmother's brother-in-law, my wife is her own child's aunt, my son is my father's nephew & I am my OWN GRANDFATHER!"