It's been a few weeks coming. It was loose and ready to come out tonight.
He put it under his pillow before bed. Both he and Alli tried to stay up and catch the tooth fairy.
When the tooth fairy did arrive though, both of them were sound asleep. Upon trying to retrieve the tooth, the Tooth Fairy noted that Ian had his hand wrapped tightly around the bag the tooth was in. It took a little coaxing to get it out while he was still asleep.
In the morning, he chalked it up to accidentally letting it go when he was rolling over at night.