Explosives + Sledgehammer

So, at what point does cultural heritage provide an excuse to tape explosives to a sledge hammer and slam it on a piece of metal to make it explode right in front of your body? The most disturbing thing about the video below isn't that there was someone stupid enough to engage in this activity, but the fact that in the displayed environment, it's apparently an acceptable and widely practiced activity. The notion of this practice being widely socially acceptable alone gives the people in this video 9 Zombie Darwins AND an occupationally challenged vampire.

Ah, Mexico... God's little blind spot.