I remember a story from the custodian (can't say owner!) of two cats. A friend gave her some freshly cooked fish for them, which she put in their food bowls, but the cats appeared baffled. In a light bulb moment, she took the bowls back, ran the can opener, then put the bowls back on the floor. The cats gobbled up the fish! Without the can opener, they didn't recognize it as food. :lol: