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by LeifCarrotson 1703 days ago
There are lots of shark repellent products already on the market, some of them electric:

https://www.hakaimagazine.com/news/many-shark-repellents-don...

And some of them magnetic, similar to those anti-nausea magnet bands. Some of them work, some don't.

Just waiting for someone with a magnet on their ankle to get it bitten off and sue the manufacturer...