The zombie apocalypse has arrived, and you are waiting for it in your basement. You managed to take a camping pot, a few novels, and a few cans of food before you closed the basement door, but forgot the can opener! What else?
WARNING: These methods of opening cans, while useful in some situations, create sharp, jagged edges on the lid. Extreme caution should be exercised when using any of these methods – it is recommended to wear cut-resistant protective gloves.