So basically, any grade school professor or college president or some other teaching instructor that has has taught you.
Here is mine: My 1st grade teacher was a ex-military or something, and on the first day she moved the “bear” (behavior chart that measures how good you have been doing) of a classmate goofing around down one, and halfway through the year it went from safe - verbal warning - phone call with parents - principal’s office and just flat out removed the verbal warning one and went straight to the phone call or something. While I was a good student, I felt bad for others that got on here (and a few times when I dod go down on the 2nd tier), and I just hated that teacher to this day. I have vauge moments of some teachers in Kindergarten or 2nd grade, but the 1st was the earliest and most vivid. Probably one of the reasons why I never want to be in the military of any sort.