Hrmmm... *rummages through his Corsairs shanty library*

There's the "Irish Rover", a wonderfully punny song.

Then there's Tom Lewis' "Sailor's Prayer" (Cho: "Lord above, send down a dove, with beak as sharp as razors/ to cut the throats of them there blokes, what sells bad beer to sailors")

There's also "Swing a Cat" (no lyrics in DB, but a Req in the forums, reproduced below for your convenience), with cats and rats both included (not to mention sailors, flea-ridden beasts that they are :)

SWING A CAT
Meg Davis

It was just after midnight that I heard the captain shout
"Curse the Devil! Behold! There are rats about!"
They were crawling up the gangplank, they were climbing up the sheets
Every sailor had a hundred snapping at his feet
"What can we do?" cried the sailors as the rats began to dance
"It's a hopeless situation, but we have one chance.
Every man go ashore, searching this way and that.
Don't ever show your face until you find a cat."

Cho:
Swing it high, swing it low, if it hollers let it go
If it's down, there's only one way to take care of that
You must grab it by its feet, swing it high, swing it neat
You can save a life, at that, if you can swing a cat

So we sprang to the docks and we bolted through the town,
Every young man among us searching up and down
Three hundred sailors running loose, what do you think of that?
And every salty sailor surely found a cat
Back to the docks we came running with our prizes,
There were cats of many colors, there were cats of many sizes
When they rats saw us coming, they all began to shout
"Curse the devil! Behold! There are cats about!"

So we turned our kitties loose upon that unsuspecting horde,
While the rats by the thousands scrambled overboard
They were swept out to sea, every germy little tail
And the sun rose upon us as we hoisted sail
Now we sail the mighty ocean, and we're such a happy crew
With our kitties here to help us, there is nothing much to do
If a cat has two fishies, he will surely give you one,
And he'll sing you off to sleep when your day is done


Heh... my cat heard that song start, and bolted to the other room... I think she's learning.