If you want to scare yourself off ever stepping foot in the ocean again, this footage should do the trick.
People are renouncing their beach days and have vowed to never swim in the sea after watching the chilling video, which showed viewers what horrors can be lurking beneath a seemingly calm surface.
The video, which went viral on social media, has frightened the life out of the majority of people who have had the pleasure of watching it.
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Although it answered a question which has probably crossed a few of our minds in the early hours of the morning once before, the clip has also managed to 'unlock a new fear' for those who have seen it.
Basically, it shows a bloke who works on an oil rig amusing himself while standing on top of one of the towering platforms.
For starters, those with a fear of heights were left feeling quite sickly, while others couldn't believe that the man had put his trust in a metal grate to take his weight.
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Although oil rigs are obviously erected with all this safety stuff in mind, it does look like the ideal spot for some kind of James Bond villain to install a trap door.
But thankfully, it isn't Goldfinger up there - it's just a lad mucking about while on his lunch break.
Anyway, he decides to drop a portion of his leftovers through the holes in the walkway which is hundreds of feet in the air, right down into the ocean below to see what happens.
The identity of the snack he sent down to the fishes also sparked much debate online, as although it appeared to be some sort of flapjack, others reckoned it could have been a cookie or a chicken nugget.
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But that is besides the point - unless you are trying to find out what aquatic creatures have an appetite for.
As the unknown food object tumbled through the air, all was quiet - until it got a few feet away from the surface.
Out of nowhere, what looks like hundreds of fish start thrashing around in the previously calm waters as they all battle it out to get their hands on the gift from the skies.
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They dart across to where it landed and devour the small chunk of grub, no doubt reducing it to nothing in just a matter of seconds.
As you can imagine, the footage has made people think twice about diving into what appear to be empty waters, as it seems you never know what could be lying in wait.
One viewer said: "Well, I’m never swimming outside a pool ever again."
Another joked: "Note to self: don't fall off an oil rig."
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A third added: "Bro singlehandedly caused an all-out war down there."
A fourth commented: "That metal floor is the difference between you living another day or turning into fish food!"
While a fifth chimed in: "I'm not going into that water."
Others pointed out that fish tend to hang about near oil rigs due to it being a good spot for plants and marine life to base, while they also get the odd scrap off humans.
But as we all know, where fish go, sharks tend to follow.
Another social media user pointed out: "Food drops, pool of fish emerge. Pool of fish emerge, sharks emerge."
Some even said the footage seemed to have captured the 'real life version' of the Lachrymose Leeches in Lemony Snicket's A Series of Unfortunate Events... and if that isn't enough to keep you out of the water, I don't know what is.
Topics: Animals, Weird, Food And Drink, Social Media, Viral