Zen of Farting
No one knows much about Reepah Gud Wan, who lived before the 10th century in China and Japan, except that he was a legitimate Buddhist monk who tired of the inability of his students to grasp the essence of his teaching.   In order to shake them up, he introduced the Zen of Farting, expecting his students to see the joke, laugh at it, and then understand his Buddhist teachings better.  Unfortunately, they failed to get the joke--and zen was the result.--This text refers to an out of print or unavailable edition of this title.