It doesn't top DMC's grizzly misadventures with knives but a few months ago I was innocently making a can of Chef Boyardee ravioli or spaghetti & meatballs or whatever and cut my left thumb pretty badly trying to open the can. There was a profuse amount of blood everywhere and the gash took quite a while to heal. Needless to say I now employ greater caution while opening cans of Chef Boyardee and other canned foods.