Sometimes:

Ham and eggs, pork and beans,
I would eat more but the cook wasn't clean.

Then there's in the Leadbelly, Woody, Cisco version:

If I had known my captain was bad,
Would not sold that special that I once have had.

If I had known my captain was tall,
Wouldn't have gone to work, till I'd saved them all (?)

If I had known that man wasn't there
I wouldn't gone to work, boys, till he gone back.

I looked over that lone corral
Tryin' to find that mule with a shoulder well.

Don't forget the 'Wha!'