Shark! Shark!
Lord of the Rings
No, just the shocking sight of an actual Hobbit actually taking a casual swim in the Baranduin (Brandywine) River. Just imagine! Why would she do that? And for pleasure. What’s wrong with that Margarita?
Indeed, few Hobbits had ever seen or sailed upon the Sea, and fewer still had ever returned to report it. Most Hobbits regarded even rivers and small boats with deep misgivings, and not many of them could swim. (”Prologue,” The Lord of the Rings)