Be sure to watch to the very end.

Strap explosives to the business end of a long hammer and bang it hard on the ground. That’s the basic idea of this strange celebration in the town of San Juan de la Vega in Guanajuato, Mexico.

“This event occurs every year during February in the tiny town of San Juan de la Vega, Guanajuato, where people re-enact a 400+ year-old battle in honor of a local farmer recognized as the “Mexican Robin Hood.” Expect to see the battle take place by the church, men arriving on horseback with banners and flags, and of course the sledgehammers.”

OK, so the reasons for doing so may be a little vague, but in any case, they’re exploding ‘artisanal’ explosives of a potassium chloride and sulphur base with big hammers. Apparently 17 people had minor wounds seen to by medics in 2007, and 50 in 2008, mostly due to being hit by explosive fragments, etc. That’s not so bad given that there are 10-20 thousand people that come for the celebration. There are actually authorities supervising everything that’s going on.