| Mrs. Farnik gives her background. |
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 | Once upon a time, I wasn't a math teacher. I was an electrical engineer. | |
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| Really? What train did you run? | |
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| No, not a train engineer.An electrical engineer. I designed computers. Now I'm a math teacher. | |
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| What's the difference between a train engineer and a teacher? | |
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| Mrs. Farnik is known for her puns. |
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| One minds the train, and the other trains the mind. | |
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| Oh. Now I'm on the right track. | |
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