Rogers’ wife has a grown up daughter from a previous marriage.
Rogers’ father left his mother, and married his wife’s daughter. Roger’s
wife had the daughter before Roger and his wife were married.
Which means, that as Rogers’ wifes’ daughter has married his father, his
father has now become his Son-in Law, and his wife’s daughter has become
his mother, because Rogers’ stepdaughter is his fathers’ wife!
So, Rogers’ wife has a son, who is his fathers’ Brother-in-Law.
Which makes it obvious that he’s Rogers’ fathers’ wife’s brother.
But he’s not only Rogers’ son. He’s his uncle also because he’s his
mothers’ brother, because his fathers’ wife is his wife’s daughter.
Which means, when Rogers daughter, (his fathers’ wife), and his mother
had a son, he became Rogers’ brother, because he’s Rogers’ fathers’ son.
But he’s the son of his daughter also.
Which makes Roger his Grandfather, and Rogers’ wife suddenly his
Grandmother.
So. In conclusion:-
Roger is his wife’s husband. But he’s her Grandson too. Because he’s the
brother of her daughters’ son, and since his Grandmothers’ husband must
be his Grandfather. Then it must be logical that Roger is his
own…..GRANDFATHER!

Jerry Reed has a song out which basically tells the same story and it's
titled "I'm my own grandpaw"

Yuck

ummm..ok, after 6 smirnoff's last night and my meds..i'm totally
confused...lol

Oh my gosh Tom, it's too early for this... but too funny.