Re: Santa Believers...
Like so many things, I have basically done a "What do you think..." approach and see where it goes.
When my DD was in grade 3, she had a classmate who announced to the entire class that "Your parents are Santa, there is no Santa!" DD came home and told me, and my initial reaction was sadness (as in, "Oh, I guess it's over...") but I asked her, "Well, what do you think about what Boy said?" and she replied, "Well, I just told him that is impossible. My parents don't have any reindeer."