Last month the above viral video, in which 'Tumba Ping Pong' play a dangerous game of knife-throwing roulette, caught fire online. And yes, it looked too impressive - and incredibly stupid - to be real.

And indeed, that's turned out to be the case. The video was fake - but now the group have released and even more interesting clip explaining how they did it.

Take a look below - but just don't try and follow their example. Not only is it still dangerous, but frankly it's been done.

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