The Woods Past the Carnival

"Stop!" you cry, turning around. "Why are you doing this?" you know this is a desperate measure, begging for mercy from a shady lady who wants to peel off your skin with a lemon peeler, but it's the only thing you can think of.
"Because you know who I am!" she shouts, stopping.
"I don't!"
"Why do you know that I can't sweat, then?" she asks, her eyebrows raising.
"You don't?" you asked puzzled.
"You don't?" the lady asks, answering her question. She stops, squinting at your head. "You truly are good. Farewell then."