A leprechaun is a mythical creature from Irish folklore. Along with unicorns and dragons, leprechauns are sometimes used as substitutes for God to illustrate the weakness of an apologist's argument, or the strength of a counterapologist's own argument.
- Atheist: "Do you believe in leprechauns?"
- Theist: "No."
- Atheist: "Why not?"
- Theist: "Because they don't exist."
- Atheist: "Prove it."