Here was my conversation today with Abby:
Abby: My leg hurts.
(Teachers--how many times a day do you hear "My ___ hurts"?)
Me: Honey, you're just going to have to tell your mom about it tonight.
Abby: I did this morning. And you know what? I don't get this. She told me it's a horse! And guess what else? She named it Charlie!!
Me: Oh, I see. You have a charlie horse in your leg.
Abby: [looks at me like I'm as crazy as she thinks her mother is] No! It's just a knot or something.