Danny invented a mousetrap, which he explained in detail. Here are some of the highlights:
"It has a little spring that snaps the mouse in place, and then it has a sponge that wipes the smile off the mouse's face, and replaces it with a frown...and then it kills it."
It wipes the smile off the mouse's face.
Sometimes, I'm a little sorry he isn't attending public school, as I'm sure parent/teacher conferences would be a real hoot.