Well, it was originally recorded on "The Perfect High," a Bob Gibson album of songs co-authored with Shel Silverstein. (I have the vinyl somewhere). It was a live duet performance at the Earl with Paxton. I think the first time I heard it, though, was live on WFMT from Chicagofest at Navy Pier (same broadcast that had Michael Cooney doing Andy Breckman's "Railroad Bill" and Art Thieme singing Bob Franke's "Thanksgiving Eve"); IIRC, they self-bleeped the "f-word" in the last line, with a live sound effect instead.