It comes from a story
about a man who joined a friend down at the docks.
were working in a fish market. Their job was to
All day long the price would change
dramatically, the action was fast and furious.
selling, selling, buying, etc. Making and losing large
sums of money.
Finally the day ended. The man
was hungry so he opened one of the fish
he had been trading and took a bite. "Hey", he
exclaimed, "these fish are rotten!".
eating sardines", his friend explained, "they are