China -- 48-year-old Mir Zhang, a Chinese police officer in the Hei Longjiang province, has studied kung fu techniques rigorously for more than 20 years, according to metro.co.uk. These studies has allegedly left him invulnerable to pain and injury.
In any case, he does seem to take a lot of it, and it may seem like criminals and thugs on his shift had better think twice.
Below, you can see him shrugging off bricks smashed on his skull with a sledgehammer. Other feats include a steel spear being forced into his throat and breaking heavy stoneware pots to pieces with his head.