89 Cavalier & 74 Jailbreak - Indestructible

I was driving to work the other day and I was stopped behind a tractor trailer at a stoplight except there were cars going through the light in the other lane. The truck started backing up and I honked my horn until he stopped. We went through the same ritual a second time, but the third time I figured I should back up. Only he was going faster this time and hit my car. I got out to check the damage and there wasn't any. I was pretty impressed that my car could withstand a ramming from a tractor trailer (presumably hauling a load of lead). Then when I got home I was cleaning up and noticed 74 Jailbreak was making a rattling noise. When I opened the case the disc had a piece missing from the edge. I put it in the cd player and it still worked fine (I ended up listening to the whole thing to make sure. From now on I'd like to be referred to as 72 Dan.