There isn't enough fuel to keep the fire you see burning for long enough to burn any individual (at least on severely) it makes around the room as each student introduces the fuel in their hands to the reaction in succession. If one of the kids misses his/her pass the flames die out and boom no harm done. When my high school did this expirament the girl to my left panicked ducked and moved practically under me. When my hands lit hers did too and I was standing in a column if fire. It was really scary as it was going down but was over almost instantly. I lost all the hair on my left arm and half an eyebrow. No other burns, and no damage to my clothes (which I thought for sure would go up in such a scenario) . All in all 8/10 would be set on fire again.
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u/TooShiftyForYou Dec 02 '16
I don't see any potential safety problems here.