So I'm on hold with the doctor's office trying to make an appointment and the on-hold music is.. "Friend Of The Devil" by The Grateful Dead, to which I know all the words. That makes me feel old. Another time a few years ago I was in an elevator and the musak playing was an instrumental-musak version of Aqualung by Jethro Tull. That also made me feel old. What makes you feel old?