We had an ancient history professor at the prep school I went to (Episcopalian) who was both the greatest teacher I ever had and also a great disciplinarian.
We were all sitting around the seminar table the first day of class, around 8:00 in the morning, slumped down and half asleep, when he strode into the classroom, picked up a long pole used to open the top half of the windows, and stuck it down one offender's back, inside his jacket and shirt, which was unbuttoned under his tie.
"Wake up! Sit up straight! Pay attention." That was the last time a scene like that opening minute of the class ever had to be repeated.
I later was told that the year before, on the first day of class, he entered the room, leapt up on the table, and started waving a sword around. That also got everyone's attention. Then it was on to the Greeks and the Romans.
His name was William A. Armstrong. In one semester, he turned my entire life around.
Cool! Sounds like the Dead Poets Society, for real!