WARNING: DO NOT TRY ANY OF THIS SHIT YOURSELF.

When we see, say, a slavering lion staring us down and licking its chops, most of our brains are wired to instantly send a "Release!" signal directly to our bladders. But as we've mentioned before , there are a select few people in this world who instead get an overwhelming urge to scwatch da widdle wion under his widdle chin. And the lion totally lets them do it.

5 Ocean Ramsey -- Great White Shark Rider

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Apparently 27-year-old scuba instructor/surfer/bikini model/aquatic superhero Ocean Ramsey (no shit, that's her real name) never saw Jaws.

For some people, cage diving with great whites is thrilling. The really bold and/or batshit insane might even crank it up a notch by abandoning the cage altogether and free diving with the world's biggest, deadliest fish. But even free diving isn't enough for Ocean Ramsey: She rides them. She rides great white sharks and says it's "quite a rush."

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Ocean swims without any protection at all. No shark suit, no spear ... no bat-shark repellent, even. She likens it to the first time she ever encountered a horse, which, when you really think about it, makes no sense at all because a horse will very rarely tear off your limbs and swallow them whole.

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And is generally not capable of eating an entire horse, itself.

Keep in mind, great whites are very curious animals that regularly test bite things that they find interesting. It's not that they're even necessarily hungry; they just interact with their world by biting it. They use their mouths to gain tactile information about their environment in the same way we use our hands -- only our hands aren't made out of serrated death-razors.