If it looks like a Dwarf, and it smells like a Dwarf, then it's probably a Dwarf or a latrine wearing dungerees.
Eoin Colfer (2008). “Artemis Fowl: The Lost Colony”, Miramax

If it looks like a Dwarf, and it smells like a Dwarf, then it's probably a Dwarf or a latrine wearing dungerees.