Gūthakhāda sutta: A Dung Eater

“Just now, reverend, as I was descending from Vulture’s Peak Mountain I saw a man sunk in a sewer, eating dung with both hands. …” …

“That being used to be a nasty brahmin right here in Rājagaha. In the time of the Buddha Kassapa’s dispensation he invited the Saṅgha of mendicants for a meal. He filled a trough with dung and said: ‘My good men, eat as much as you like, and take what’s left.’ …”