Four methods to open canned goods without a can opener. Knives, spoons or even curbstones can help.
Drive nails into the lid: Open the can with a hammer and nail. Sand up a can: This is how cooking with asphalt helps with soups or ravioli. If all the previous tricks don't work, you can't be carried out. All you need is a rough floor or paving stones on the curb or street to loosen the lid of the can.