How to open a can without a can opener

I learned this trick in Cody Lundin’s book “When All Hell Breaks Loose.“ *Update 7-30-12* Hello, fellow Lifehackers! Thanks for watching. First, let me say this was a big surprise. This was just something simple I recorded some time ago in a single take during a lunch break to show two of my friends what I’d learned. Out of all the videos on YouTube that illustrate this technique, I don’t know why Lifehacker picked mine. There are definitely better-quality videos with better explanations of how to