Live & learn. (Die & forget it all.) I always supposed "The Pioneers" went to the tune of "O Tannenbaum".

*My* favorite stanza of it is

Great joy they reap from tupping sheep
In sundry bogs and ditches,
Nor care a damn if it's a ram,
Those hardy sons of bitches!

There is, IMO, a lamentable scarcity of polymorphous perversity in folk song.