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March 27, 2026

Memorable moments: The blackboard brawl

In 1984, my school world shifted. We moved away from the dour, strict atmosphere of the previous headmaster and into the era of Mr. Cannon. He was charismatic, warm, and—most importantly—an unbelievable teacher. In his first year, he tossed out the standard textbook and devoted half the syllabus to an "alternative" approach. We were no longer students; we were detectives, gleaning history from archaeological clues and conflicting accounts.

But the most powerful lesson I ever received didn't come from a book or a shard of pottery. It came from a staged "scandal" that has stayed with me for nearly forty years.

We were in the middle of a session when the Deputy Head, Mr. Hart, stormed into the classroom. He looked livid. He marched up to Mr. Cannon and bellowed, "I saw you eyeing up my wife the other day! How dare you!" (To this day, I’m not even sure Mr. Hart was married, but the delivery was flawless).

The class sat in stunned, horizontal silence as the two most powerful men in our school got into a physical scuffle. Mr. Hart shoved Mr. Cannon against the blackboard, teeth bared, shouting more angry words while we watched in total disbelief.

"You haven't heard the end of this!" Mr. Hart finally screamed, storming out and slamming the door.

The tension in the room was thick enough to carve. We were reeling—what had we just witnessed? Mr. Cannon calmly straightened his tie, dusted off his jacket, and turned to us with a slow, knowing smile.

"Right class," he said quietly. "What did just happen here?"

The relief that swept through the room as we realized it was a performance was immense, but the real work was just beginning. Mr. Cannon began to grill us on the details. What was Mr. Hart wearing? What exactly did he say? What did his body language insinuate?

The results were staggering. Even though we had all been in the same small room, watching the same event only ten minutes prior, our accounts were a mess of contradictions. We argued over the words used, the intensity of the shove, and even the color of Mr. Hart's tie.

Mr. Cannon grinned with the satisfaction of a man who had just pulled off the ultimate heist.

"Well, class," he said, "if you can't all agree on something you witnessed first-hand ten minutes ago, how in the hell can you believe in historical accounts? How can you believe in history?"

Nearly forty years later, the details of that day are still more vivid to me than any date I ever memorized for an exam. That is the definition of powerful teaching: creating an experience so disorienting that the truth finally has a chance to sink in.

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