Knowing when to tell your children that the tooth fairy, Santa Clausand the Easter bunny aren't real is never going to be a great day.
But if you're lucky, they might just get there first.
This nine-year-old girl penned the perfect letter to the tooth fairy (aka her mum and dad) and while she was at it, involved Santa and the Easter bunny too.
"Mum and dad, I'm sorry if this is hard for you, but I'm 9 now," she wrote.