Physicist Andreas Wahl just pulled the trigger of a gun on himself. And he's still alive to tell the tale.
The dangerous experiment was Wahl's attempt at observing how a bullet moves under water.
It's easy to see why Wahl may not have had many volunteers for the experiment.
The video, which has been uploaded on Youtube, shows Wahl standing in a pool with an assault rifle pointed right at him.
The gun worked exactly how it would on land. However, the bullet fortunately missed the target and sank before the halfway point. The sinking has been attributed to the intense resistance from the water in the pool.
The trigger was attached with a long rope which he pulled after counting to three.
The video of the experiment is available on YouTube.
"It's harder to create movement in water than in air, because water molecules are closer together than air molecules. To show the difference in resistance, physicist Andreas Wahl puts himself in front of a weapon submerged in water and fires it - on himself", reads the description of the video.
Watch it here: So why do guns not fire properly underwater? Want to understand what happened? Here's your quick science lesson for today: Dailymail.co.uk explains, "The bullet burst out of the barrel with the same power it would if it was above the water and since the camera is underwater, viewers heard the same loud boom."
"Water bubbles followed behind the bullet as it sped towards Wahl, but momentum was lost before it reached the halfway point and gracefully sank to the bottom."