Hugo Reiner is an experienced diver, but when he decided to wear a T-shirt with the words 'Bite Me' written on it during an expedition, it seemed to anger one big shark.
Reiner, from Florida, USA, was on an expedition to Guadalupe Island - off the west coast of Mexico's Baja California peninsula - where divers can exit the cages and experience swimming freely with the deep sea beasts.
He said he was wearing the fate-tempting top for a picture opportunity. He got it.
The Daily Mail has all the pictures here: