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The Unwritten Code of the Seafarer

Life at sea runs on unspoken rules — about rest, respect, and pulling your weight. Here's what the merchant navy teaches about work ethic.

The Unwritten Code of the Seafarer

Seafarer's job is arguably one of the toughest. Long hours, physical work, high stakes. One of the consequences of this trade is that rest becomes something more than a comfort — it becomes a right defended with real intensity.

The International Maritime Organisation introduced regulations on work hours precisely because fatigue at sea doesn't just cost productivity. It costs lives. On average, a seafarer is entitled to eleven hours of rest in every twenty-four consecutive hours, though that time can be split into two periods, one of which need only be six hours long. When you factor in meals, handovers, and the general logistics of living on a ship, you begin to understand why the golden rule at sea is simple: sleep when you can, because you don't know what the future holds.

But this essay is not really about sleep.

It's about what sailors do to protect each other's right to it — and what that reveals about the proper way to do any job.


When a seafarer is off duty, they don't say they have "free time." They say they are resting. The word choice is deliberate. And the rest is defended fiercely. If you want to learn what true, uncomplicated rage looks like, ask a sailor finishing their watch whether they'd mind staying a bit longer to run some errands. Voluntarily. To really spice things up, mention that the errands aren't important. I wish you luck.

It is obviously allowed to call crew members for any reason. But calling someone for anything short of a genuine emergency or urgency is considered — among people of the trade — the worst crime. Not legally. Culturally.

There's a tale about a captain who decided to conduct a night drill in the middle of an actual night, unannounced. No emergency. No requirement. Just because. The same asshole was later accused of other improper behaviours and fired, or so I heard.

Now, here's where it gets interesting. Because the social punishment for unnecessary disturbance is so severe, the maritime world didn't just develop rules about when you can call someone. It developed a culture around making sure you never have to.


Think about it from the other direction. Why would someone need to call you after your shift?

Because they can't find something you used. Because they don't understand where you left off. Because the handover was vague and now they're standing in front of a job they can't continue. Because you left things in a state that requires your explanation to make sense of.

Every unnecessary call traces back to the same root: someone didn't finish their work properly.

An ordinary seaman can't find a particular chemical in the store. The bosun is asleep. Should they call the bosun? Technically — yes. But it's the bosun's fault. Can't find a particular tool? Wake up the fitter. No soap in the chemical store? Find the steward and drag them out of their sweet sleep. Is that polite? No. But it's not the caller's fault. It's the fault of whoever left things in a state where calling was necessary.

This pressure — the social cost of being the person whose laziness woke someone up — created an unwritten code. It is never formally taught. Nobody hands you a manual. But every competent seafarer follows it, and you absorb it simply by working alongside people who take their profession seriously.

It goes something like this:

Leave everything in the place you took it from. Not near it. Not roughly in the area. In the place.

Give your reliever a proper handover. Over-explain if you must. Tell them what's done, what's pending, what's unusual, what to watch out for. A thorough handover is not a sign of distrust — it's a sign of respect.

Finish the scope of work, or leave clear instructions on how the rest can be continued. Not mental notes. Not assumptions that the next person will figure it out. Actual, legible guidance.

If you can't finish and you're leaving mid-task, leave the workspace in a way that doesn't obstruct others from performing their own duties.

Prepare the workplace for whoever comes next.

Do your work in such a way that nobody needs to wake you up.

That last point is the whole philosophy, compressed into a single sentence. It sounds like it's about sleep. It's not. It's about the dignity of doing a job thoroughly. It's about professional responsibility taken to its logical conclusion: if your work is complete, clear, and properly handed over, your absence creates no emergencies. You become unnecessary the moment you leave the room — and that is the highest compliment your craft can pay you.


Seafarers who follow this code sleep well at night. Or day, depending on the watch.

I'm not claiming we're saints. We spend our free time running through The Office for the fifth time and call it an evening well spent. We're human. But there is a deep pragmatism embedded in this culture, and I've been thinking about how cleanly it applies beyond the sea.

If you're organising an event — leave all the important details accessible for anyone who might need them when you're away. Contact numbers, site logistics, contingency plans. Don't make yourself the single point of failure and then turn off your phone.

If you're a teacher and you're assigning homework — accompany it with a clear and precise explanation. Not clear to you. Clear to a student encountering the material for the first time, on their own, at ten in the evening, without you there to clarify. If twenty students email you over the weekend with the same question, the problem isn't twenty students. It's one unclear instruction.

If you're a programmer — write comments. Write documentation. Name your variables like a human being will read them. Make it so that the next developer who opens your code can understand what it does, why it does it, and how to change it, without ever needing to call you. Your code should be a complete handover, not a riddle.

The principle is always the same. Do your work as if the person who comes after you will never be able to reach you. As if you are handing them a loaded gun and a map — and they need to know which direction to fire and who is the enemy and who are the comrades. Leave nothing to guesswork. Leave nothing that requires your presence to decode.


I've carried this rule off the ship and into every part of my working life. It can be summarised simply:

Do everything in such a way and scope that nobody ever has to call you.

It's not about being a perfectionist. It's not about working longer hours. It's about working with the awareness that your job doesn't end when you leave — it ends when the next person can pick up exactly where you left off without missing a beat.

Nobody wants to be called in their free time. But in order not to be called, you must start by doing genuinely good work yourself.

Don't want to be called after hours? Be like a seafarer. Don't give them reasons.

work-ethicresponsibilitydisciplinemaritimeteamworkprofessionalismhabits

Eric Kulbiej

Maritime officer and software engineer focused on practical, dependable digital products for maritime operations and training.