In high school I had to write a long apology essay in part because my computer teacher testified to the principal that the Windows command line is "a high-security area of the computer that students have no business accessing."

I tried to explain that she was wrong, but you can guess how well that went.

While we're sharing anecdotes...

In high school, I was doing a programming course. I was working on my assignment in the library, when the librarian came in and started yelling at me for hacking. I explained that it was course-work, and she said "Oh, alright then.".

One week later, she came in yelling at me "I've already warned you once about this!", and kicked me out of the library.

* confused-look