silver_tears
i think it was TH that said this and well i found the poem 
I Am My Own Grandpa
Many, many years ago
When I was twenty three
I got married to a widow
Pretty as could be.
This widow had a grown up daughter
With flowing hair of red,
My father fell in love with her
And soon the two were wed.
This made my dad my son-in-law
And changed my very life.
Now my daughter was my mother,
For she was my father's wife.
To complicate the matters worse
Although it brought me joy,
I soon became the father
Of a bouncing baby boy.
My little baby then became
A brother-in-law to dad,
And so became my uncle,
Though it made me very sad.
For if he was my uncle,
Then that also made him brother
To the widow's grown up daughter,
Who of course was my step-mother.
Father's wife then had a son
Who kept them on the run,
And he became my grandson
For he was my daughter's son.
My wife is now my mother's mother
And it makes me blue.
Because although she is my wife,
She's now my grandma too.
If my wife is my grandmother,
Then I am her grandchild.
And every time I think of it
It simply drives me wild.
For now I have become
The strangest case you ever saw,
As the husband of my grandmother,
I am my own grandpa
I Am My Own Grandpa
Many, many years ago
When I was twenty three
I got married to a widow
Pretty as could be.
This widow had a grown up daughter
With flowing hair of red,
My father fell in love with her
And soon the two were wed.
This made my dad my son-in-law
And changed my very life.
Now my daughter was my mother,
For she was my father's wife.
To complicate the matters worse
Although it brought me joy,
I soon became the father
Of a bouncing baby boy.
My little baby then became
A brother-in-law to dad,
And so became my uncle,
Though it made me very sad.
For if he was my uncle,
Then that also made him brother
To the widow's grown up daughter,
Who of course was my step-mother.
Father's wife then had a son
Who kept them on the run,
And he became my grandson
For he was my daughter's son.
My wife is now my mother's mother
And it makes me blue.
Because although she is my wife,
She's now my grandma too.
If my wife is my grandmother,
Then I am her grandchild.
And every time I think of it
It simply drives me wild.
For now I have become
The strangest case you ever saw,
As the husband of my grandmother,
I am my own grandpa
right ok so e married a widow and his dad married his daughter 
thanks for that
