Work Text:
Sam finished the exorcism in a rush, but the demon still advanced, eyes gleaming.
“It didn’t work, Sam,” Dean warned. “Why didn’t it work?”
“I don’t know!”
“Well, figure something out!”
“Hang on!” Sam grabbed a pen and began scribbling.
As the demon leapt for Dean, Sam slapped a Post-it Note to the demon’s forehead, and black smoke poured out of its mouth in a scream.
Dean shook his head. “Whoa. How did you know that’d work?”
Sam tapped his ear. “Meatsuit had a hearing aid. Demon couldn’t hear us, so I showed him the words.”
“Smart.” Dean nodded approvingly.