Number Two Pencil
Well, it is really old, actually. But still a good one!
Here it is.
Reynold B. Johnson is an American inventor known for two big things.
The computer disk drive, and the automatic test scoring machine that was able to sense pencil marks, and were used for SAT scoring and stuff like that.
Anyway, when he was a kid, he liked to use his #2 pencil to humiliate his sister's boyfriends. Whenever they would park the Model T Fords in front of the house, they found they could not restart the engine. This was because Reynold the wiz kid had done something to the car with a pencil that he could not have done with a pen.
So he did something to the cars with his pencil that could easily be fixed.
What was it?
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