I've been in rooms where the most senior person had the most to say.
You know these rooms. The leader fills every silence with certainty. Admitting ignorance feels like weakness. Everyone nods, takes notes, and leaves more confused than when they arrived.
I spent years becoming the person who filled the silence. And somewhere along the way, I started believing I'd figured it out. Leadership. Done.
I was wrong.

The School With No Graduation Ceremony
Garry Ridge spent 25 years as CEO of WD-40 Company. He grew it into a multi-billion-dollar business and turned a tin of lubricant into one of the world's most recognised brands. Through all of it, he refused to graduate from what he calls the School of Dumbassery.
Not as a joke. As a philosophy.
The belief is simple: the moment you stop being a student of leadership, you start becoming the kind of boss people dread working for. Leaders who think they've arrived are the most dangerous people in an organisation.
I interviewed Garry on my podcast last year. One thing he said stayed with me. Three words define great leadership, he told me: "I don't know." Not because ignorance is strength. Because honesty builds safety.
What "I Don't Know" Builds
When Garry took over as CEO in 1997, WD-40 had solid products and a struggling culture. What he inherited was a business running on command, not on trust.
He changed it by staying a student himself. Visibly. Deliberately. Publicly.
The results are almost absurd in their clarity. By the time he stepped down in 2022, 98% of WD-40 employees said they loved telling people where they worked. 99% said their values aligned with the company's. 93% said the organisation encouraged them to keep growing. Revenue doubled on his watch.
None of this came from a new product line. None of it came from a clever strategy. It came from a leader who refused to stop learning.
We Don't Make Mistakes. We Have Learning Moments.
One of Ridge's most-repeated lines: WD-40 doesn't have failures. It has "learning moments."
This sounds like HR spin. It isn't.
When you rename failure as learning, you change what people do with it. They don't hide it. They don't deflect it. They bring it forward, examine it, and move on. The fear of being wrong starts to shrink. People take risks they'd never take in a culture of blame.
I've worked in companies where mistakes got buried. Where the instinct after something went wrong was to manage the story, not learn the lesson. I've watched this culture eat itself. Good people leave. Bad habits compound. Leaders start believing their own narratives.
The School of Dumbassery is the antidote to all of it.

The Army Taught Me This. I Let It Go.
In the Army, training never stopped. You finished basic and more training followed. You got promoted and training came with it. You reached a level where you were supposed to know things, and training kept coming anyway. Skills faded without use. Situations changed. Complacency got people hurt.
Nobody told you at any point you were done. Because in the Army, "done" is a liability.
I took this into my civilian career and then, somewhere in my thirties, I let it go. I got senior enough for learning to become self-directed, optional, and easy to skip. I got busy enough to stop reading properly. I got confident enough to stop asking the dumb questions in meetings.
I was "experienced." Which, looking back, meant I'd stopped growing.
The Symptoms of Graduation
You don't announce when you've graduated. It happens quietly, and the signs are subtle.
You stop asking questions in meetings where you're supposed to be the expert. You start finding new ideas annoying instead of interesting. You give feedback based on how things were done before, not what the situation needs now. You surround yourself with people who confirm what you already think.
Go deeper and the pattern gets worse. You start interpreting pushback as disloyalty. You mistake seniority for insight. You build a mental model of how leadership works, and when reality doesn't match the model, you assume reality is wrong.
The most insidious part: your team adapts to you. They stop bringing you the hard problems. They tell you what works, edit out what doesn't, and you end up living in a carefully curated version of reality where everything seems fine. Until it isn't.
The leaders I've watched do the most damage had all graduated. They were senior enough for the feedback loop to close. Nobody brought them hard truths because it didn't feel safe. They stopped seeking hard truths because they felt they already knew them. And they took entire teams down with them, often without any awareness of what was happening.
The Danger of Feeling Like You've Arrived
Here's what I've noticed about leaders who've graduated: they stop being curious.
Curiosity drives the good questions, the deep listening, the willingness to sit with uncertainty. And you lose it quietly. Nobody announces it. You notice, eventually, you haven't changed your mind about anything in a long time.
If your leadership model looks identical to five years ago, pause there.
Ridge, at 66, still teaches leadership at the University of San Diego. He runs workshops, writes books, goes on podcasts. Not to explain what he already knows. To keep testing what he thinks he knows.
What Staying Enrolled Looks Like
It doesn't need to be formal. Most of it isn't.
It looks like asking the youngest person in the room what they're seeing you aren't. It looks like reviewing a decision from six months ago, without flinching, and asking what you'd do differently. It looks like reading something you disagree with and sitting in the discomfort instead of dismissing it.
It looks like being wrong in public and not collapsing. Being willing to hear feedback you didn't ask for. Accepting someone changed your mind and saying so out loud, rather than quietly adjusting and pretending you were always thinking this way.
None of this is natural. The whole professional culture rewards appearing competent. We get promoted for having answers. We build reputations on being the person people come to when they're stuck. Admitting ignorance feels like stepping backwards.
It isn't. It's the only way forward.
The School of Dumbassery isn't a place. It's a stance. Garry Ridge wore it as a badge of honour and built one of the most engaged workforces on the planet to prove it works.

The Only Graduation Worth Pursuing
There is one graduation worth pursuing in leadership: the moment you stop caring about appearing competent and start caring about becoming it.
From there, you stay in class. And if you're doing it right, you keep finding out how much more there is to learn.
What's the last thing you read, or heard, or experienced, genuinely changing how you think about leadership? If you're struggling to answer, it might be time to re-enrol.









































































































































































































































































