Hilarious pun but tragic disaster, in the year 1919 21 people lost their lives to a flood of molasses.
A large storage tank filled with 2.3 million US gal (8,700 m3) weighing approximately 13,000 short tons (12,000 t) of molasses burst, and the resultant wave of molasses rushed through the streets at an estimated 35 mph (56 km/h), killing 21 and injuring 150. The event entered local folklore and residents claimed for decades afterwards that the area still smelled of molasses on hot summer days.Wikipedia
You can read the Wikipedia article here. It’s events like this that lead to the safer world we live in today, and there’s always a lesson to learn from history.