Okay, so i own a Joyetech Cuboid.. It was perfectly fine until i placed it on a small piece of wire i had left on my table. So i placed it on my table and saw a bright orange flash underneath, me going into silly panic mode, i picked the mod up and ripped the battery door open and took the batteries out in attempt to throw them outside. But.. it wasn't the batteries that had shorted, they were cold. No, as i took the batteries out i smelt the similar smell of what new drills give off, like a plasticy rubbery saw dust smell. Although the mod works ok, I'm not using it as i does smell a lot like the time i accidentally shorted out a transistor and it started smoking. Something is definitely fried so please keep your cuboid away from metal objects, especially underneath. My battery wraps aren't damaged either so this is a design flaw.