Butcher, Baker & Candlestick-Maker

Origin
"Rub-A-Dub-Dub" is an English language nursery rhyme.

This rhyme exists in many variations. Among those current today is:
 * Rub-a-dub-dub,
 * Three men in a tub,
 * And who do you think they were?
 * The butcher, the baker,
 * The candlestick-maker,
 * They all sailed out to sea,
 * 'Twas enough to make a man stare.

And:


 * Rub-a-dub-dub,
 * Three men in a tub,
 * And who do you think they be?
 * The butcher, the baker,
 * The candlestick-maker,
 * All put out to sea.