Art, my husband (Bill D) learned the Talkin' Nothin' Blues with the following last verse:

This song was written with nothin' in mind,
Nothin' at all of any kind,
Nothin' at all of any degree,
Aint nothin' in it that I can see.
Nothin' at all in any respect --
We was aided by a poverty of intellect.

...I'm not sure if he sang lines 3 and 4 or not. But thought you might like that last couplet.