When you're doing marshmellos at a camp fire you're probably roasting them much higher off the coals and in flame. Coals are hotter than flame too, which I imagine heated the spit so this is probably why you had the meltdown? Good save!
"VOTE FOR MOOSE!" Moose
Pit Beeatch for Team Munchkin
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"If more people would just open their minds, more people would learn things." Wampus