As you're probably aware by now, there's a glitch in Destiny that allows players to easily defeat Atheon, the final boss in the Vault of Glass Raid, in just a few minutes.
Admittedly, I'm not too familiar with the exact tactics required, as I prefer to down Atheon the traditional way, but it involves pushing him off the edge of the platform using grenades. This method (which is being patched) is referred to as "cheesing" the boss, and has been used by many Guardians to easily farm the raid. Even on Hard Mode, cheesing Atheon only takes a few minutes.
Sometimes, though, things don't always go as planned.