The self-described Crazy Russian Hacker of Youtube demonstrates in eye-watering detail a method for tool-free can opening: just grind down the can's rim on a handy block of concrete, then squeeze. The stunt is repeated several times, just to be sure you've absorbed the technique in all its complexity. It's all framed in post-apocalyptic terms, naturally: a kind of Russo-Survivalist Youtube version of Three Men in a Boat.
How to Open a Can without Can Opener – Zombie Survival Tips #20
(via Neatorama)