Tooth Fairy (spoiler alert!!)

I was reading Cindy's blog post about the tooth fairy and I recall that I had to get some teeth pulled when I was a kid. That very night I saw a $2 bill on the kitchen table before I went to bed, which seemed odd. So, I wrote the serial number down on a piece of paper, and then, the next morning I checked the serial number on the $2 bill that magically found its way under my pillow with the number on the piece of paper and lo-and-behold, they matched, thus proving that the tooth fairy doesn't exist! I was smart enough to know that no two bills had the same serial number, yet too dumb to know that there isn't some magical 'fairy' who gives kids money for teeth.