Pedophile's Hardest Challenge

This joke uses a dark and offensive subject matter, pedophilia, and makes a play on words. The phrase "fitting in" is usually associated with social acceptance, but in this context it refers to the actual act of a pedophile "fitting in" with children. This creates a disturbing double meaning that is intended to be darkly humorous for some, but highly offensive to others. The humor arises from the incongruity between the innocent phrase and the horrific reality of the topic.