"Most of us would know how your mind can drift when you're out surfing. A nearby disturbance in the water, and you unfortunately start to picture the worst. You may envisage getting away by the skin on its teeth, or imagine being chomped. I would be surprised however, if any of us actually contemplated what it would be like after you have been eaten alive.
David Hocking did, and wrote a novel about just that."
smorgasboarder.com.au