My daughter has always told her kids Santa is a fun tradition, but he's not real. This year her oldest daughter started kindergarten, and came home one day and informed her that Santa IS real because Jimmy told her so. I told her have fun with the stage that her kids' friends now know more than she does.
Then a couple of days later my daughter heard my granddaughter thinking out loud. "Does that mean I'm on the Naughty List? Because Santa doesn't bring me presents, my parents have to."
Merry Christmas everyone.