You've no doubt seen pranks done by YouTubers. Some of them involve scaring the shit out of people. Like this killer clown one, and then this exorcist one. They're all pretty damn scary to say the least. But here's one even scarier thought: one day, someone is going to die from this.

The latest prank that's going viral is this one: a kid in some freaky mask with a knife. How is this not freaking scary?

Check out the clip below.

While this one might not be that scary, the killer clown one is:

And so is this psycho flame thrower one.

While the people in the video are running away most of the time, one day they might just meet someone who won't. And that someone could actually have a weapon, say a gun. And he or she, might not hesitate.

It's just a thought, but let's hope for these viral pranks' sake, everything we see in the video has been staged.