There's also a silkie parody, i. e., "You picked a fine time to leave me, you seal!"

Here's my notes from 2004:

To the tune of "Lucille" by H. Bynum and R. Bowling, parody lyrics by Elizabeth Scarborough ©2004
Adaptation by Muriel Doris 2004

You Picked a Fine Time to Leave Me, You Seal

Chorus:

You picked a fine time to leave me, you seal
The babe that I bore you just makes my head reel,
He'll only eat kippers, has four lovely flippers,
Likes to dive down to the well for his meal,
You picked a fine time to leave me, you seal

Oh, you are a silkie, or that's what you told me
Though I'd sworn you were a man;
A right comely boy, oh, you gave me much joy, oh,
But I never did understand;
I'd have cause to regret, once you got your feet wet
For a silkie as I've come to know
On hitting the water can swim like an otter
And balance a ball on his nose.

Though we parted friendly, I think you should send me
Some child support, that is my wish;
Since I moved to Ohio, it's so hard, don't you know,
Just to keep that poor kid in fish;
And if I should remarry it must be to some faery
Of silkie descent, or at least
To some understanding and most undemanding
Boy in the employ of Greenpeace.

Cheerily,
Charley Noble