"I wanted to deny him, but that's the terrible power of a diary: it not only calls forth the person you used to be but rubs your nose in him, reminding you that not all change is evolutionary. More often than not, you didn't learn from your mistakes. You didn't get wiser, but simply older, growing from the twenty-five-year-old who got stoned and accidentally peed on his friend Katherine's kitten to the thirty-five-year-old who got drunk and peed in the sandbox at his old elementary school. "The sandbox!" my sister Amy said at the time. "Don't you realize that children have to pee in there?"