I was rakish as a 5th grader.
In Colorado public schools, it was called "Citizenship". In the Catholic schools, it was called "Conduct". Citizenship was graded either Satisfactory (S) or Unsatisfactory (U). I got straight U's in 6th grade.
To this day, I don't know what happened. I just went haywire. I got good grades, and all other aspects of my life seemed under control. I just could not behave in class. Mom was very concerned, but my dad said I would "snap out of it"--whatever "it" was.
I was a pretty good kid in 7th, 8th, and 9th grade (middle school). In high school, I kept a low profile in 10th grade, but I returned to being a total screw-up in my junior and senior year. I never did malicious things, but I caused damage, physical and psychological. It all culminated in the spring of my senior year when I was arrested for arson. It wasn't really arson. It was bad judgment with fire, but the Arapahoe County Sheriff was not amused.
I was an angel all 4 years at ND.
I don't think business majors had to read a lot of books.