If you tend to take your iPhone into some sketchy places, then you're going to want to check out the ArmStar BodyGuard iPhone dock. The ArmStar BodyGuard iPhone dock is exactly what it sounds like, an armored case for your iPhone.
There are plenty of "armored" iPhone cases out there, but how many of them can stun a would-be robber? The ArmStar BodyGuard iPhone dock has built-in electrodes designed to first deter attackers with a loud and bright flash of light, and then knock them out with a powerful zap. The case is also designed to look like Batman's gloves. This could be accidental, but I'd like to think it was done on purpose. No word on pricing or availability, but this is one case I'd like to see in stores sooner rather than later.