In Greenville, Maine, The Black Frog has a skinny-dipping offer. If a customer skinny-dips in the local lake (pictured above), owner Leigh Turner gives them a free prime rib sandwich on a baguette roll. After a customer complaint, Turner briefly considered dropping the offer but did not. Turener says he gets two or three takers a week, and the skinny-dips usually happen at night. The customer drops their clothes on the dock behind the restaurant, runs off the dock and surfaces to a towel. The restaurant's very unique menu can be seen here.