Mr. Hankey's Potty Training Origins

During potty training at around age four, South Park co-creator Trey Parker often refused to flush the toilet. His father, geologist Randy Parker, called the stool "Mr. Hankey" and warned that it would come alive and kill Parker if he left it unflushed. The frightened child began flushing repeatedly and later transformed the childhood threat into Mr. Hankey, the Christmas Poo.

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