My sister

My sister is a person very hard to predict. 4Am her time, her MSN window popped out with a big smiling face. She said she suddenly woke up and couldn't sleep. But just before I was able to say anything meaningful, she was gone again. She said she will go back and lie down and try to fall asleep. I'm left wondering why she even bothered to get up and go to the Internet at all. Expecting someone online? Probably not me...