Gallon Challenge
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Although this activity hasn’t proven deadly, the aftermath still isn’t pretty. Made popular by the MTV series Jackass, the gallon challenge involves drinking an entire gallon of milk in an hour. Because the human body is incapable of processing such a large amount of milk in one sitting, gallon challengers inevitably face an unpleasant round of vomiting and possibly diarrhea, cramps, and bloating.
