When it turns into a driveway.
CAR-LOSE
Build a house next to it.
You turn it's floppy disk into a hard disk
Everything is fine as long as they are white, it is when they turn black it starts to be a problem.
They're still in your driveway
Anxiety in 3...2...1... knock, knock *sigh* "WAIT A SECOND!" *mumbles* "I need to find pants."