Punch ‘em on the nose is the usual advice. If Jaws 2 is anything to go by, an electric cable in the mouth is also effective.
Now, scientists in Australia have developed a more sensible way to avoid death by shark: wear an ‘invisibility cloak’ wetsuit.
Though the threat of sharks is regularly overplayed in a world still traumatized by Spielberg, Western Australian has suffered five fatal attacks in recent years, giving the area an unwelcome reputation and prompting designers Shark Attack Mitigation Systems (SAMS) to work on a solution.
In the end they came up with two. The first, a wetsuit called ‘Elude’, uses the recent discovery that sharks are colour-blind to camouflage swimmers in the water.
The second – called ‘Diverter’ – comes in a bold white and dark-blue stripe design that mirrors the patterns found on poisonous animals, a warning sign in nature that wards off bigger predators. That’s right: you can actually scare the shark.
The suits cost a not-unreasonable $495 (£325) and went on sale at online distributor Radiator this week. If you're planning to brave any shark-invested waters this summer, we recommend you bite their hand off. (Sorry).