It's amazing what discussions can be generated while showering with a 4 year old.
"You're a giant, Mommy."
"Fe fi fo fum."
"How do you spell that?"
I obediently comply. And then launch into the entire quote, "....I smell the blood of an Englishman. Be he live or be he dead, I'll grind his bones to make my bread." (Cheery thoughts, those fairy tales.)
"Gluten-free bread, right, Mommy?"
"Maybe that is why he was in such a bad mood. He was reacting. His mommy giant said to him, 'You're reacting....'"
I can just visualize the next installment: Sherlock Holmes as the Gluten Detective.