Bonnacon

The Bonnacon is a mythical creature that will kill you with it's poop. It's a great creature for Illogicopedia.

The bonnacon was described by Roman naturalist Pliny the Elder as being similar to a horse or a bull with two inward-pointing horns. And because the horns aren't ideal for fighting, the beast had a different strategy for self-preservation -- it could fire its own shit at you at an alarming velocity, and said shit was so acidic that it could burn like fire on contact.