In what can only be described as a really bad idea, a friend of General David Petraeus mailed a fake grenade to his office in the Solow Building on 58^th Street.

Here is a video of some Chinese soldiers tossing around a live hand grenade, dumping it into a hole, and then acrobatically leaping away from the blast in unison like some weird Busby Berkeley number from Hell. When did it happen? Is it real? Why are the doing this? Who knows. The Atlantic Wire has some ideas. Go China!

Did Renee Deshaies of Mesa, Arizona enter a local Dairy Queen and "threaten" employees with the grenade she supposedly found lying around in a park? Or did she just "show" the grenade, as if to say, "Whoa look, grenade! Weird. Anybody know what I should do with this?"

Five soldiers inside a Humvee are greeted with the ominous sight and sound of a grenade dropping... in the vehicle. To the delight of those in on the joke, the two in the front seat (rightfully) freak the hell out!

If one were to rank the most hardcore, insane sports in the world: Hunting humans would finish second, followed by extreme curling in a close third. Number one? Number one, with a bullet, is grenade ping-pong.