At the time, the movie Jaws was so frightening. My husband and I had just seen the movie and later we were playing in the Cocoa Beach, Florida surf. Someone yelled "SHARK" and I immediately jerked my hands and feet up. I was floating on a plastic board. My husband kept trying to reach my hand and a wave would pull me away just enough so he couldn't grab on.LOL. I laugh now, because it seems like it was funny to watch. There were sand sharks and that was probably what that guy saw. Let me tell you though, that was frightening. I never went into the ocean ever again. Atlantic or Pacific.