Another old music hall song
I'M MY OWN GRANDPA
      (Shel Silverstein )

            
It was many many years ago when I was twenty-three
                                                            
I was married to a widow, she's as pretty as can be
                                          
This widow had a grow up daughter who had hair of red
         
My father fell in love with her, and soon these two were wed.

                               Chorus
                     
I'm my own grandpa, I'm my own grandpa

It sounds silly I know, but it really is so, oh

I'm my own grandpa.

         
This made my dad my son-in –law and changed my very life
                                                                  
My daughter was my mother 'cause she was my father's wife
                                                   
And then to complicate the matter, though it brought me joy
                           
I soon became the father of a bouncing baby boy
                                                         
This bouncing 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 he also was the brother
                                                                                                            
Of the widow's grown up daughter, who, of coarse, was my step mother.

                                     Chorus

Father's wife then had a son who kept them on the run
And he became my grandchild, for he was my daughter's son
My wife is now my mother's mother, and it make me blue
Because although she is my wife, she's my grandmother, too
Now if my wife is my grandmother, then I am her grandchild
And every time I think of it, it nearly drives me wild
For now I have become the strangest case you ever saw
Husband of my grandmother, I am my own grandpa.

                         Chorus