There are quite a few ways to open a tin can using different tools, like a knife, a drill, a dremmel and so on, but I've never seen it be done with
bare hands, or as in this Russian video-- with Bear hands. All you need is a flat piece of concrete and a firm grip. After seeing the video how it's
done, wearing a pair of artisan's gloves might be a good idea, because of the sharp edges. If anyone knows of other techniques, feel free to add to
the thread. Anyway, here it is:
awesome. I've read many survival guides and military handbooks and have never seen or heard of this trick. I've spent ages talking to many different
people and this has never came up. tanks for sharing. very pertinent piece of info IMO