I'm so trying this on my next camping trip: Toilet Paper Tuna Torch. The basic idea: set the oil on fire that's found in a container of tuna fish in oil, and when you're done, enjoy the tuna fish. Oh CrazyRussianHacker, you never disappoint.
And I've got ask: does it work with sardines in oil, too? I guess there's only one way to find out.
Here's the video: