The demolition of a building can be a notable enough event to draw a crowd of spectators, but if you think you’re far enough away to be safe, consider walking backward a couple more yards.

A man in the Czech Republic learned this lesson. See how:

It is unclear exactly when this demolition happened, but the YouTube video description posted Sunday said the event occurred in the Czech Republic.

The rock that flew after the explosion “almost killed people watching the demolition,” the video description read.

Image source: YouTube

Image source: YouTube

Image source: YouTube

Image source: YouTube

Image source: YouTube

Image source: YouTube

There are those who believe the rock might be a fabrication made through computer graphics, while others counter that the incident was real. What do you think?

(H/T: Sploid)