Firing port Puns

The ancient Greek port city of Tempus was an outlet for international trade and rivaled Constantinople in it's heydays for commerce. City officials were warned by port authority to leave things as they were, but they were driven by profit and, against all counsel otherwise, added a second port to the tiny wharf. In it's first week of operation, the congestion caused from the extra traffic of the second dock resulted in absolute chaos, including a trade galleon being accidentally unmoored and set adrift without crew, and several panicked sailors and dockworkers died in the shark infested waters. Other sailors and laborers were so enraged by the officials' ineptitude of they began a riot which would have the town engulfed in anarchy and fire within a day. The city never recovered and now lays in ruin.

This is of course how the ancient Greeks learned the dangers of a pair of docks.