Columbian drug-lord Pablo Escobar kept four Hippos in his estate before his death in 1993. Deemed too much hassle to move by authorities, his Hippos were left there and have since bred and escaped becoming an invasive species of Columbia.

It cost the soft drink industry $100 million a year for thefts committed involving vending machines.

Amazingly, goalies in the National Hockey League played without masks until the year 1959.

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