How I was taught it.

    ...Then I got myself a Cow.
       called my cow - no milk now,
       called my horse - lame of course,
       called my pig - thin a ma jig,
       Called my Donkey - gone all Wonky
       called my hen - no eggs again,
       called my wife - bane of my life,
       called my shack - break my back,
       but the land was sweet and good and I did what I could.

the final verse being surprisingly short.

       Then I got my self a Son
       Called my son - my works done.

Song Ends.