Santa Claus delivers gifts without fail every December 24th, and the Easter Bunny is always prompt on the eve of Easter, but the Tooth Fairy doesn’t always show up when children are expecting her. Why?
Well for one thing, the poor little fairy is overworked. She doesn’t travel the globe only once a year, but must go out every night with hardly any vacation time at all (replacements are so hard to train). There are some nights when the list of children to visit is simply too much to handle, and she must wait for the next night or even the next.
Another reason is once in a great while she will suffer an injury like a broken wing. It happens! Sometimes an over-friendly pet will catch her or she might bump into a window she thought was open. Thankfully, she heals quickly, but it may be a little while before she can start her rounds again.
Sickness in fairies is less common than in humans. They are immune to most of our diseases, but there is a particularly nasty virus called the Fairy Flu which causes high fevers and fatigue. When the Tooth Fairy has the Fairy Flu there is no way she can do the flying that is needed to reach all the children with missing teeth.
She regrets that she has earned a reputation for being flighty. She takes her job seriously and honestly wants to make children happy with prompt service, but emergencies do arise. She truly apologizes if this has happened in your family, and begs your forgiveness.