That's what happens when you tape a homemade bomb to a sledgehammer and wack a rock.
When you're going to show off your abs of steel make sure your partner knows the difference between ABS and RIBS!
It sucks coming out in the morning to layers of ice on your car. Time to break out the hammer.
After getting hit in the head playfully with a sledgehammer the guy starts to get pissed and knocks his buddy out.
That's a perfect way to crush yourself. This guy got very lucky!