Once in a while comes a device that makes you wonder, "Why didn't I think of that?"

This is one such device, the bastard child of a stun gun and a knuckleduster.

Not only can you break a rival's an assailant's jaw, but you can zap him/her with just a few hundred-thousand - 950,000 to be exact - volts of electricity into the bargain, the 21st-century version of pouring sand into their mouths.

For only $69.99

via übergizmo.com