The three challenge words are gunpowder, treason, and plot. I don't own the boys, sorry.
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"Hey, how come we never add gunpowder to our weapons?" Dean asked suddenly.
Sam shook his head. "They're very flammable, and they could lead to disasterous results."
Dean suddenly began to smile, coming up with a crazy plot.
Several hours later,...
Sam and Dean stood in front of a burning grave, completely covered in ash and soot.
"I told you so," Sam confronted. "This is why we don't use gunpowder in our weapons. We could be accused of treason because of this." He began to walk back to the Impala.
Dean looked at the grave, definitely knowing he overdid it.
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