Free money.

Yesterday in the mail I got an envelope from my ex-employer, whom I haven't worked for since November 2001. It was from the company's tax department, so I was expecting the worse. Perhaps I owed money on my long since cancelled (not by me) health insurance. But, oddly, it was good news: they had $195.34 of unclaimed income for me. My question is, why didn't they tell me about this back in November or December 2001? Idiots.