> > Did you hear about the guy who became a grandfather on his tenth birthday anniversary?
>
> The first thing that popped into my head when I read this was a wonderful song from the 1940s called "I'm my Own Grandpa."
>
> The premise was that this guy was married to a widow. The widow's daughter (now his son) married his father.
>
> This made his dad his son-in-law, and therefore his daughter was his mother because she was his father's wife.
>
> Then, he had a child, who became his Dad's brother-in-law, and therefore his uncle. And if the kid's his uncle then that also makes him brother to the widow's daughter, who is our hero's stepmother.
>
> Then, his dad had a child, so as his daughter's son this child became his grandson. However, as his father's son, this child also became his brother.
>
> Now, if our hero is the kid's grandpa, then his wife is the kid's grandma. However, as brother of the kid, his wife is his grandmother.
>
> So, as husband of his grandmother, he is his own grandpa!
>
> Confused yet? Good. :-)
>
> Mar"my kingdom for the Cleaver family"kus K.

Quote from the above mentioned song:
"To complicate the matter, although It brought me joy,
I soon became the father of a bouncing baby boy."
But I don't remember the part about her daughter becoming his son.
Howard