I try not to confuse my child too much. However, he asks questions like, "How do the witches in Shrek fly?" and I tell him, "Magic, but don't worry there is no such thing as witches or magic." Then he asks how Santa Clause flies and I say, "Magic." That might be very confusing to a four year-old brain.
I'd really like to keep this Santa Clause thing going for as long as possible. I explained to my son that there is good and happy magic...Christmas magic, and then there is scary magic. There is no such thing as scary magic. There is such thing as Christmas magic.
(I did give him a very practical answer when he asked how Santa Clause puts out fires when he goes down the chimney, and how he turns the fire back on. In case you want to know, Santa pours water down the chimney when he arrives, and throws a match down the chimney when he leaves. He doesn't even need magic, just a lot of matches.)
I believed in Santa Clause until I was about ten or eleven. My family was driving home from my grandparents' house, and all my siblings were sleeping except for me. I, of course, was reading. Yes, it was a book that thrust the truth upon me whether I wanted to know or not. (I can't remember which book it was now, but I'm sure it was evil and wanted to shatter all the dreams of ten and eleven year-old girls.) I turned to my mom and asked her the question, and she confirmed that they had been making up stories about the fat man in the red suit. (I think the truth about the Easter Bunny came soon after that.)
So how did you find out the truth about Santa Clause??