Shiite Muslim child Mahmoud Slieman after his mother cut him with a sword during the annual ritual to mark Ashoura Day in the southern Lebanese town of Nabatiyeh, Tuesday March 2, 2004. Ashoura day marks the Shiite Muslim’s commemoration of the 7th century killing of their most revered Saint Imam Hussein. Al Hussein was a grandson of Islam’s prophet Mohammed and is a symbol of martyrdom for Shiites. (AP Photo/Mohammed Zaatari)

Shiite Muslim Mohammed Jomahaa cuts the head of his son with a sword during the annual ritual to mark Ashoura Day in the southern Lebanese town of Nabatiyeh, Tuesday March 2, 2004.

Also see here, here, here, here, and here.

And here’s a guy beating himself (and anyone close enough) with some sort of giant metal claw.