“Grandmamma," I said, "if it's a dark night, how can a witch smell the difference between a child and a grown-up? “Because grown-ups don't give out stink-waves," she said. "Only children do that."
      "But I don't really give out stink-waves, do I?" I said. "I'm not giving them out at this very moment, am I?"
      "Not to me you aren't," my grandmother said. "To me you are smelling like raspberries and cream. But to a witch you would be smelling absolutely disgusting."
      "What would I be smelling of?" I asked.
      "Dogs' droppings," my grandmother said.
      I reeled. I was stunned. "Dogs' droppings!" I cried. "I am not smelling of dogs' droppings! I don't believe it! I won't believe it!"
      "What's more," my grandmother said, speaking with a touch of relish, "to a witch you'd be smelling of fresh dogs' droppings.”

Chapter 2: “How to Recognise a Witch