Except to torment them?
So the kid is still studying her Black Adder text assidiously, and it contains a whole section on Medieval Medicine, with various ways leeches were used for this cure and that cure. She's munching Tater Skins while she reads.
I eat one. I eat another. She is reading me bits about leech cures. I eat another, and say, "You know, these are dried leeches."
She looks at the Tater Skin she is about to eat, and looks at me. "It isn't."
She considers it. "Leeches aren't this color," she declares.
"Well, sure. Not until you cook them."
She considers some more. "Leeches aren't flat."
"Right, the factory flattens them during the process."
She regards me with deep suspicion. "It says Tater Skins on the bag," she points out.
"Of course it does. Who would eat a chip called Dried Leeches?"
She didn't fall for it, though. She's gotten too clever. My brother Ben, on the other hand. He would have fallen for that one until he was ten or eleven, at least.
4 hours ago