That's how many digits of Pi I memorized back in my 8th grade Algebra class. I was very good at math back then, and I usually finished all my tests and quizzes quite a bit early, so I spent all the extra time staring at a banner of the many digits of Pi wrapping around my classroom. I tried to go further than the 17th decimal point, but no more digits stuck. Those 17 decimal points have been with me for 12 years, though, and I can still spout them out rhythmically and robotically, with the same inflection each time, like you do with your childhood phone number.
In that same class, there was one test question that uncharacteristically stumped me. I was not in the habit of reading the chapters from our math book, even if our teacher assigned them, because I already understood how to do the Algebra without reading them. But one test question asked us to define a few terms from one of the chapters, and the one term I didn't know was apothem.
Never one to leave a test question blank, I defined an apothem as a small furry marsupial that played dead in the face of danger. Then I drew a little picture of the animal in my sketchbook. I can't remember if I had been clever enough to say the animal had a lisp. I didn't receive points for my answer, but my teacher did congratulate me on my pun.
Funny the completely useless things that remain in memory while important things slip away.
I still don't know what an apothem is, either.

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