The quotes generated at this site have kept me amused for hours!
Sample: Ooh, I'm so poison-coated, I could meddle in the affairs of a breezeblock! and
Look at Hansel and Gretel's Rubinesque beast!
Tip: right-click on the quote and choose "Refresh" to reload the quote without reloading the whole page. (For Macs, click & hold down the mouse button)
Well apparently no one did and this thread is just about to go into No-posts-in-60-days Limbo so I'll answer my own question.
The format "I'm a ______ and I'm OK. I _____ all night and I ______ all day." which seems to come up with some regularity, has got to be a borrowing from Monty Python's "The Lumberjack Song" (I'm a lumberjack and I'm OK. I sleep all night and I work all day.") of some years back.
Anyone who has never heard this song is missing out on a major delight of life. With my second wife, this was "our song."