So it's a lazy weekend afternoon. The videogames are beat, the girls are off elsewhere, and the internet is barren. What are two bored dudes to do, other than fill a balloon with some flammable substance and blow themselves up?

We're not sure what's in this thing—propane, maybe—but it was clearly a really, really bad thing to fill a balloon with. Filling a balloon with nearly anything but air or water is probably an awful idea. But if you absolutely have to, please, please don't light it on fire and then hold it. Please. [via Reddit]