The Trust Equation:
Knowing When to Protect Yourself and When to Open Up

Some of the most important lessons we learn on the mat have an interesting analogy to knowing who and how to fight.

One of those lessons is learning who we can trust.

Think about the people in your life.

There are people you feel completely comfortable around. You can speak freely, make mistakes, ask questions, and be yourself without worrying about what they’ll do with that vulnerability.

Then there are people who require a little more caution. You watch what you say, pay attention to their behavior, and keep some distance.

And occasionally, you meet someone with whom you need to establish very clear boundaries.

What’s interesting is that you’re the same person in all three situations.

What changes is the relationship — and the amount of trust that has actually been earned.

I learned this on the mat, sometimes the hard way.

But the more I’ve thought about it, the more I’ve realized how much it applies to our careers, our friendships, our families, and our everyday lives.

A Blue Belt Who Taught Me About Predictability

In the early 90s, when I was training Hapkido, there was a blue belt in our intermediate class.

He was a senior student. And a nice guy.

But he had a problem.

He couldn’t modulate his training.

It didn’t matter whether he was working with someone bigger, smaller, more experienced, or less experienced.

He approached everyone pretty much the same way.

When I was still a junior student, I think I was a purple belt, I had to be especially defensive when sparring with him.

Not because he was trying to hurt me.

But because I couldn’t count on him to adjust his intensity appropriately. I had to take responsibility for my own safety.

As I kept training, something interesting happened. I started recognizing his patterns. I could anticipate his attacks, read his timing, and develop ways to defend against his approach.

Eventually I became comfortable enough to start experimenting with my own techniques.

He was still training much the same way. I was the one who was changing.

And because I was adapting while he stayed predictable, I eventually got to where I could handle him despite his seniority.

He continued advancing in rank, but from where I stood, his technical and mental development wasn’t keeping pace.

And soon after, he left.

I kept training long after he left.

Looking back, that experience taught me two things.

First, rank and experience don’t automatically translate into judgment. I’ve seen plenty of that outside the dojang, too. Titles get handed out. Judgment has to be earned.

Second, sometimes we become more comfortable around someone not because they’ve become more trustworthy, but because we’ve become more capable.

There’s a real difference there.

Think about your own life.

• Maybe you have a coworker who’s consistently careless.
• A supervisor whose reactions are predictable but unreasonable.
• A family member who repeatedly behaves in ways you’ve learned to anticipate.

Over time, you get better at managing those relationships.

But your improved ability to handle someone’s behavior doesn’t mean the underlying relationship has become healthier.

You’ve learned to adapt.

That’s valuable.

But it isn’t the same thing as trust.

And here’s the part I had to sit with: my ability to handle him didn’t mean he’d learned how to adjust his training for anyone else.

When a Boundary Had to Be Established

Another experience came later, after I’d earned my black belt.

I was a second-degree black belt by then, and a younger first-degree black belt was testing his newly-promoted rank.

He was bigger and stronger than me.

And he was eager to demonstrate how tough he was.

He even had the Punisher skull stenciled onto his chest protector.

There’s nothing inherently wrong with enjoying an aggressive comic-book character.

But the mindset he brought onto the mat seemed to match that image. He was training like he had something to prove.

Hapkido, as I learned it, emphasized flowing, adapting, redirecting energy, and using appropriate force. He was approaching it with a much more aggressive mindset.

He wasn’t a bad kid. He was young, strong, and still figuring out what being a martial artist meant to him.

But his behavior was creating a problem.

He was trying to assert himself physically, and I needed him to understand that I wasn’t interested in a contest of egos.

I’d seen that kind of energy before — on the mat, and during decades in construction. I knew how fast things could escalate when somebody confused strength with authority.

During sparring, I started using lead-leg roundhouse kicks to the inside of his thigh. I began above the knee, deliberately controlling the contact.

The idea was to show him I could reach him whenever I chose.

But he wasn’t getting the message.

I progressively moved the target higher, still trying to communicate that I controlled the distance and the timing.

Eventually, I clipped his protective cup with controlled contact.

That got his attention.

He backed off.

Now, looking back, I can see the risk in escalating a physical exchange to make a point. I wouldn’t hold that up as a universal solution for dealing with an aggressive training partner.

But it taught me something I’ve carried ever since.

Sometimes people don’t understand a boundary intellectually until they experience the consequences of crossing it.

And here’s the distinction that matters.

Getting someone to back off isn’t the same as earning their trust.

You may have established respect for a boundary. You may have demonstrated that you can protect yourself.

But genuine trust takes more than that. It takes two people who both recognize and respect the relationship.

That lesson has applied well beyond martial arts.

Sometimes you have to tell a coworker their behavior is unacceptable.

Sometimes you have to stop accommodating someone who keeps taking advantage of your generosity.

And sometimes you have to make it clear that friendship, loyalty, or professional courtesy doesn’t mean unlimited access to your time, energy, or goodwill.

You don’t need to become hostile.

But you do need to become clear.

Being trustworthy doesn’t require letting people treat you however they please.

The Trust Equation

I’ve been reading The Trusted Advisor by David Maister, Charles Green, and Robert Galford, and they offer a useful way to think about trustworthiness:

Trustworthiness = (Credibility + Reliability + Intimacy) ÷ Self-Orientation

It isn’t a scientific formula that assigns a number to a relationship.

It’s a framework for understanding why we trust some people more readily than others — and why some people who look impressive on paper never quite earn it.

Let’s walk through the four parts.

Credibility: Can I believe what you say?

Do you know what you’re talking about?

Are you honest about what you know and what you don’t?

On the mat, credibility isn’t the black belt. It’s demonstrating sound judgment and real understanding of the technique.

At work, it’s the difference between somebody with an impressive title and somebody whose expertise you can actually rely on when something goes wrong at two in the morning.

Reliability: Do you consistently do what you say you’ll do?

Can people count on your behavior?

The blue belt from my earlier story was predictable, but predictability alone wasn’t enough.

He wasn’t reliably adjusting his intensity to the person in front of him.

Reliability means doing the appropriate thing for the situation, not just repeating the same thing every time.

Intimacy: Do I feel safe enough to be open with you?

This isn’t about emotional closeness or being friends.

It’s about whether you can admit uncertainty, ask for help, make a mistake, or raise a concern without fearing the other person will use it against you.

Think about the difference between training with someone who wants you to improve and someone who wants to win every exchange.

With one person, you can experiment.

With the other, you’re protecting yourself the whole time.

Self-Orientation: Is everything about you?

This one sits in the denominator, and that placement is doing real work.

The more preoccupied someone is with their own agenda, ego, or self-interest, the harder they are to trust — even when they’re credible and reliable.

That young black belt was skilled and strong.

But in those exchanges, his need to prove his toughness outweighed his attention to what made the training useful for both of us.

That’s what made him hard to work with.

It’s the same when a manager cares more about looking powerful than developing people, or when someone listens only long enough to load their next argument.

The question isn’t whether people have self-interest.

We all do.

It’s whether that self-interest leaves any room for the person in front of them.

Three Relationships, Three Responses

Consider how this plays out in your own life.

With some people, you need to be cautious.

You recognize limits in their judgment, consistency, or behavior.

You don’t necessarily dislike them, but you know better than to expose yourself unnecessarily.

With others, you need firm boundaries.

Maybe they’re used to getting their way through pressure, intimidation, or disregard for what other people need.

You don’t have to fight them.

But you may need to stop yielding.

And then there are the people who’ve earned your trust.

With them, you can lower your defenses.

Share unfinished ideas.

Admit when you’re wrong.

Explore unfamiliar territory without worrying that every mistake will be used against you.

Those are usually the relationships where the real growth happens.

It’s why I value good training partners today.

We can push each other hard without turning every exchange into a fight for dominance.

We train seriously and still look out for each other.

That combination of challenge and safety is where learning actually lives.

The same thing is true of a good workplace, a strong marriage, a lasting friendship, and honestly, most of the teams I’ve seen work well.

Trust Isn’t Static

Here’s another thing worth holding onto.

Someone you trust today may behave differently tomorrow.

And someone you don’t trust much today may grow into a person who earns more of your confidence over time.

Relationships change.

People mature.

Circumstances shift.

Your own experience, competence, and judgment develop.

So your circles of trust shouldn’t be permanently fixed.

You can let people move closer as they demonstrate credibility, reliability, consideration, and respect for your vulnerability.

And you can create distance when their behavior gives you a reason.

That isn’t cynicism. It’s paying attention.

And there’s a responsibility that comes with it.

Don’t confuse one bad day with a permanent character flaw.

Look for patterns, context, accountability, and whether the person is actually willing to improve.

You wouldn’t want someone judging your whole character by your worst afternoon.

Extend that same fairness to others. While still respecting your own boundaries.

Now Turn the Equation Around

So far we’ve been talking about deciding how much to trust other people.

Here’s the harder question.

How trustworthy are you?

When someone is inexperienced, do you adjust your approach to help them learn — or do you use it as an opportunity to look good?

When someone makes a mistake, do you help them understand what happened, or do you make sure they feel foolish?

Do you follow through on what you commit to?

Can people disagree with you without worrying about consequences?

When someone brings you a problem, are you actually listening — or already assembling your solution while they’re still talking?

And when someone challenges you, do you respond from judgment or from ego?

Those questions aren’t comfortable.

But they’re useful.

Because personal leadership starts with admitting we don’t control anybody else’s behavior. We do have considerable influence over our own.

You can become more credible by deepening your knowledge and being honest about what you don’t know.

More reliable by keeping commitments and adapting sensibly when circumstances change.

Safer to be open with by handling other people’s mistakes and vulnerabilities with care.

And less self-oriented by practicing genuine curiosity about what other people actually need.

None of that requires a new title, a promotion, a belt, or a position of authority.

It requires practice.

⚔ The Dojo Drill: Take This Off the Mat

This week, pick one relationship in your life.

It might be a training partner, a coworker, a supervisor, a friend, a family member, or someone you lead.

Then sit with three questions.

1. What level of trust has this person’s behavior actually earned?

Not what you wish were true. Not what their title or their role in your life suggests. What has their behavior demonstrated, over time?

2. What response is appropriate?

Do you need to be more cautious? Establish a clearer boundary? Or allow yourself to become a little more open?

3. What could you do to become more trustworthy in return?

Is there a commitment to keep? A question to ask? A boundary of theirs to respect? An assumption of yours to reconsider?

You don’t have to change the relationship overnight.

Sometimes the next step is simply noticing.

Other times it’s having a conversation you’ve been putting off.

And sometimes it’s recognizing that someone has earned more trust than you’ve been giving them.

One last thought.

The goal of martial arts was never to spend your whole life defending yourself.

We build the ability to protect ourselves so we have more freedom to move, explore, and grow.

I think trust works the same way.

Learn to recognize when you need protection, when you need boundaries, and when you can safely lower your defenses.

Because the real goal isn’t to become harder to hurt.

It’s to become wise enough to know when you can be open.

And trustworthy enough that other people can feel that way around you.

Keep training, on and off the mat.

Chuck

The Daily Dojo

📚 From the Leader’s Library

​The Trusted Advisor — David H. Maister, Charles H. Green & Robert M. Galford​

Why?

Because trust is the foundation of every meaningful relationship, whether at work, at home, or on the mat.

This book introduces the Trust Equation, a practical framework for understanding what makes someone trustworthy.

More importantly, it challenges you to examine your own credibility, reliability, and ability to put others’ interests alongside your own.

Learn to build relationships where people feel safe enough to be honest, take risks, and grow.

P.S. Know a martial arts gym owner who’s stressed about money or student numbers?

Do them a favor: send them to The Leader's Dōjō, my website where I help owners get more students and keep them longer with simple systems.

One forward from you could change their gym: The Leader's Dōjō​

Chuck