Maybe these verses will work better, while advancing the plot:

THE VERY UNFORTUNATE BOSUN

Here's to the bosun whose fortune was vile;
He signed on a flash packet bound for the Nile;
He signed on a flash packet bound for the Nile;
He's a very unfortunate, very unfortunate,
He's a very unfortunate bosun!

He shipped out of London so neat and so trim
Unaware of the fate that was waiting for him;
Unaware of the fate that was waiting for him;
He's a very unfortunate, very unfortunate,
He's a very unfortunate bosun!

Now the winds in the Bay how fierce they did blow
But his ship made the straits without dire woe;
His ship made the straits without dire woe
He's a very unfortunate, very unfortunate,
He's a very unfortunate bosun!

From the west to the east, cross the Med they did go
And the Barbary pirates blew high and blew low;
The Barbary pirates blew high and blew low;
He's a very unfortunate, very unfortunate,
He's a very unfortunate bosun!

He dropped hook in Alex, went ashore for a spree,
When a trio of Cleos barged up on his lee;
A trio of Cleos barged up on his lee;
He's a very unfortunate, very unfortunate,
He's a very unfortunate bosun!

They grappled his arms and took him in tow
To Share el Berka like a shot they did go;
To Share el Berka like a shot they did go;
He's a very unfortunate, very unfortunate,
He's a very unfortunate bosun!

But I'm not sure what happened after our hero was towed away to "The Street of Whores."
Maybe I need to do some more research!

Cheerily,
Charley Noble