Tinned tuna is a handy thing to have around, whether in your home, or when travelling or camping. But sometimes, a cold can of tuna just doesn't cut it. That's where the flaming, oil-soaked toilet paper comes in.
As Redditor user drdesparche points out, you can cook a tin of tuna using a piece of oil-soaked toilet paper, a trick that Israeli military forces use all the time. You will need to use tuna in oil for this trick to work.
Open the can without draining it. Place three sheets of toilet paper over the can and soak until they are covered in oil. Try not to spill any oil and leave a few gaps between the paper and the can so you don't create a seal. Light each side of the toilet paper (you'll want to do this outside, and you'll need to exercise caution) and let it burn for about 25 minutes or until it goes out. Remove the paper, blow off any ashes, and enjoy.