I was reading Tucker's bedtime story tonight when he alerted me to the corner of the page: a half-moon was torn from the bottom left.
When I asked what happened, he said, "I bit it."
And with that, he reached under his pillow and handed me the proof: the half-moon piece of paper that matches the shape of his mouth.
I didn't realize I needed to advise againt eating the corners off the pages of library books.
Apparently, I do.