What IS a roustabout? The only roustabout I know is this one:
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Once they was a little boy, wouldn't say his prayers,
and when he went to bed at night, w-a-a-y up the stairs,
His mammy heard him holler! And his daddy heard him bawl!
[creepily] and when they turned the covers down...
He wasn't there at all.

They seeked him in the rafter room and cubby hole and press.
They seeked him up the chimbley flue and everywhere, I guess.
All they ever found was just his pants and ROUSTABOUT.
Oh, the goblins'll get YOU, if you don't watch out!