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Farts are explosive, not just the way they come out of your arse, but two of the gases in farts are inflammable. Methane and hydrogen, are inflammable, which is what makes it possible to cause a small explosion if you hold a lighter up to your rear end when you fart. It’s not a good idea though, we’ve all heard the story about the kid who farted at the candles on his birthday cake and ended up in hospital with a badly burned backside so don’t do it.
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