"I Have a Heart in My Eye. It is Beeping."

One day earlier this week one of my little girl's eyes, I guess, was twitching. She was trying to explain it to me. She said, "I have a heart in my eye. It is beeping." How cute! She was explaining the twitching and that is the best she could explain it. For some reason, first graders often say "beeping" instead of "beating" when referring to the beating of their heart. But, I thought it was such a neat and cute explanation on what came "Out of the Mouth of Babes."