Evidently it's an ancient Chinee custom to combat constipation home style. First, take one of these foot long Asian Swamp Eels--
Then force it up your rectum into your intestine. A man in China did it much to his dismay. The animal did consume fecal matter but it also munched away a great deal of his intestine.
WARNING: Do this at your own risk unless you wish to die. Luckily, Mr. Chin Wong Duh! survived.