The Facebook site is seriously addictive. It's like stepping into a time machine and pulling up people that only exist in memory. Like the person you sat next to in the 4th grade.
The problem comes as you start chatting it up and soon realize that the events being recalled happened over TWENTY FREAKING YEARS AGO and you suddenly realize that you are OLD. Much older than you thought. And maybe you even have children OLDER than you were when said event took place.
After you have been thinking about it awhile it occurs to you that you are sleeping with a 40+ year old married man. Something you never thought in a million years you would ever do. Sigh.