You either have to be really pissed off or a little bit nuts to shoot your computer case with a 12-gauge shotgun. Alternately, you could work for Fractal Design, a Swedish case and power supply maker that was dead set on proving its Define XL case isn't just great at absorbing noise, it can also swallow a shotgun blast to the chest, up to 10 times.
It's one of those things you have to see to appreciate, so carve yourself out five minutes of free time and check out the embedded video below:
Well played, Fractal Design. And to reiterate the warning at the beginning of the video, please don't try this at home, not unless you're willing to record the carnage (and risk injuring yourself and/or your computer case and parts).