Nailing Bored Heads

Bored Romanian convicts with nothing better to do are passing the time by driving nails into their skulls. The "game" came to light when recently released convict Radu Popescu showed his posse how he'd passed his time in jail, but drove the nail so far in that he had to go to the hospital to have it removed. (Alcohol was involved.)

The stunt is done by placing a nail against the wall and head butting it, a la Zinedine Zidane.

Quoth Popescu:

There was nothing to do in jail, it's just one of the ways we passed the time - whacking nails into our heads. It doesn't hurt. It became quite popular after somebody accidentally threw a dart that stuck in another man's head and everyone thought it was really funny

Maybe someone should give these guys a deck of cards.

Sources:
Austrian Times