The Bonnacon is a legendary creature described as a bull with inward-curving horns and a horse-like mane. Not too out of the ordinary – except… it expels large amounts of caustic feces from its anus!! Don’t worry though, besides being a fictional creature, the character only uses its magic butt powers for self-defense.
Unknown. The Bonnacon, 13th Century. Wikimedia Commons, Public Domain License. Information from Wikipedia(CC BY-SA 3.0).