Mayaerne indtog alkohol rektalt med et lavement ved bestemte ritualer, fordi de ellers kastede op af at drikke den.
Kilder: De Smet, Peter A.G.M & Nicholas M. Hellmuth. ”A Multidisciplinary Approach to Ritual Enema Scenes on Ancient Maya Pottery.” Journal of Ethnopharmacology, 16, 1986: 213-286.
http://www.strangehistory.net/2013/05/31/vision-quest-2-the-rainbow-enema/