A rock climber from Scotland was taking on a crag in Greece recently when he made one very painful mistake. He's about 40 feet up the face of a rock wall, when his hand slips, he falls about ten feet and slams against the wall hard.

WARNING: NSFW Language

According to the video's description:

A particularly nasty fall cut Calum's trip short. After lowering off he began to cough up blood and was taken to the hospital where he was told he'd broken/dislocated his thumb and fractured his ribs. He booked an early flight back to Scotland and required surgery to fix up his hand. He's out of the game for a couple of months, wish him well!