Off topic warning here (but relevant to the University of Tennessee in a roundabout way).
This will be lost on many, and I apologize and will try to enlighten those that didn't get a taste of this in their youth as students at UT. Taking English, there was this thing called the Harbrace Handbook. Always reminded me of that joke about the joke tellers convention where everyone knew every joke in the world and they saved time by just telling the number of the joke and everyone would laugh. One guys turn and he threw out "Joke 143" and nobody laughed. When he asked "why is nobody laughing"? The punchline: "You told it wrong". OK bad corny.
But Harbrace was like that in English. When your paper is graded, where you screwed up is just a code with no explanation. (like a joke number). My Achille's; heel was always "Superfluous Commas" (Commas were in Chapter 13 - I think it was a 13e for superfluous commas but it's been a minute) , and by golly the post that
Unconditional Surrender is referring too put me in PTSD from UT English, Fall Quarter, 1975. Would be interesting to see the post he's referring to "coded up". LOL
I really wanted to be an English major, but I already spoke the language and this pushed me into Engineering instead.
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By the way, John C. Hodges, who wrote the handbook ( and who the undergraduate library of UT is named after), created this "monster work" and it has been adopted as the "go to" book by many schools and is the standard. If interested, more details in this link:
Hodges, John Cunyus - Volopedia
My Dad was at UT in the '30s and he too had PTSD from this grading system. We were out fishing one day and he went on a diatribe about these grading codes. When fishing, sometimes you run out of things to talk about.