The three stages of believing in Santa.
1) You are a small child, you passionately believe in Santa.
2) You are an older child, you don't believe in Santa.
3) You're a big kid. You are Santa. (And that's when you know that you are getting old.)
Kinda scary to be at 3 and only be 21. Not only do I love to give presents, but I grow out my beard and wear a Santa hat during the holiday season, and really little kids stare up at me wide eyed with the word "Santa?" hanging on their tongue. lol