Someone was wide awake when he was supposed to have been asleep.
Still prickles me as wrong to do the whole tooth fairy and santa thing, but I'm not his mother. At least I can rationalize it as follows: "But there is a Tooth Fairy! Mommy is the tooth fairy for you, and Mama was the Tooth Fairy for me, and every kid's mom or dad or aunt or somebody is the tooth fairy for them."
Still disturbs me somewhat, though.