Look closely — your worst nightmare is lurking in this photo

We aren't quite sure if this is an example of extreme courage or an extreme lack of common sense. A pic from Redditor cherlich has jumped to the top of the sharing site because it shows a young man swimming at night off Cape Cod. No biggie. Except that it happened to have been taken during shark season. And sure enough, lurking in the background as this young man frolics in the surf is an ominous dorsal fin. It's unclear if the guys knew the shark was hanging out while they were swimming or if this was a surprise they saw later when looking through the pics. Either way, as one commenter said, this is a textbook example of a living nightmare. [Source]

Click to see more on msnNOW.com, updated 24 hours a day.