"Day Z" is a mod to the years-old game Arma II that's sparked a resurgence for the title, but not everyone is on the same page when they're playing it, apparently.
The game spawns players in remote parts of extremely hostile environments, tasking them with finding weapons, ammo, food, medical supplies, and allies. But any humans you encounter are liable to turn on you rather than help, stealing your supplies and making their own survival slightly more probably.
Some players just want to see the world burn, though. The two guys in this video encountered one such sociopath, whose crimes of yelling weird things and running in circles clearly required the nervous duo to execute him.
Luckily, the demon is no longer at large.
Have you had any crazy experiences in Day Z? Tell us about them in the comments or on Twitter.