Watch the ominous shadow of a hammerhead shark behind these two guys, who are way too casual about exiting the water and getting onto the beach in Destin, Florida.
You Tube user Scott McCain posted this video in which the cameraman yells to them to get out of the water, but they act like they have all day!
Fortunately, the huge shark is after a nearby sting-ray, which he appears to be hunting. At that point, the two guys (who are only a few yards from the shark) notice and start to run! Warning: this video may make you think twice about getting into the ocean.