Don't know the source, but here is the rarely heard 6th night verse.

Be careful where you sing them, but I guarantee, in the right venue you'll get the whole crowd listening!

Well, I came home on Saturday night as drunk as drunk could be.
I saw a tool inside the bed where my old tool should be.
I called my wife and I said to her, "Will you kindly tell to me,
Who owns that tool inside the bed where my old tool should be?"
"Well, you're drunk, you're drunk, you silly old fool, and still you cannot see.
That's a lovely vibrator that my mother sent to me."
It's many the day I've travelled, a hundred miles or more,
But a vibrator with a foreskin on I've never seen before!

If anyone really wants the 7th night, just let me know!

HTML line breaks added. --JoeClone, 9-Aug-02.