The diesel shop on a Friday night smells like burnt metal and brake dust.
Half the lights are off. The fluorescent panels in the front office buzz with that metallic whine that becomes the baseline sound of overtime. Back in the bays, shadows pool under the locomotives like spilled oil, dark enough that you can’t see the floor clearly.
It’s 7:15 pm. Everyone else left at 5:00.
I’m walking through with a parts list in my hand when a supervisor steps out from behind a locomotive. He’s got grease on his forearms and that look on his face — the one that says he’s about to make someone’s night longer. The concrete echoes with each of his steps. Somehow he weighs twice as much when you’re the one he’s walking toward.
“Hey man,” he says. His jaw is tight. He’s been holding something in. “You got a second?”
That phrase should come with a surgeon general’s warning.
Of course I did. I always did.
“Yeah. What’s up?”
That’s what being reliable means. It means you say yes. It means you’re available. It means you’re the person who doesn’t have somewhere else to be.
Or if you do, that somewhere else is less important than whatever is happening right here on this oil-stained concrete at 7:15 on a Friday night — when dinner is getting cold on a counter across town, and the house learned not to wait for you years ago, back when the kids were still small enough to notice.
He started walking. I followed.
That’s how it works. Someone walks. You follow. The problem is always deeper in.
The trap isn’t the request. It’s the arithmetic.
Here’s what nobody explains when they hand you the reputation.
Being reliable is not a fixed trait. It’s a rate. Every time you say yes, the rate goes up — not the pay, the rate. The expected volume. The default assumption about what you will absorb before anyone has to make a hard decision.
And the arithmetic is brutal, because it only runs one direction. Nobody ever walks up and says “you’ve been carrying too much lately, we’ve reassigned some of it.” That conversation does not exist in the wild. I have never once seen it.
What happens instead is that your capacity becomes the plan. Not a buffer — the plan. The schedule gets built assuming you’ll stay. The staffing gets set assuming you’ll cover. The forecast gets signed off assuming that when it goes sideways at 7:15 on a Friday, there will be a guy with a parts list in his hand who says yeah, what’s up.
You’re not the safety margin. You are the margin.
Why it’s so hard to see
Because every individual instance is reasonable.
That’s the whole mechanism. Nobody hands you an unreasonable request. They hand you a perfectly reasonable one, at a moment when saying no would look petty, and they do it forty times a year for eleven years.
Any single yes is defensible. The aggregate is what’s eating you.
And because it accumulates instead of arriving, there’s never a clean moment to object. There’s no line to point at. You can’t say “this is too much” about a request that is objectively small. So you say yes again, and you file the resentment somewhere it won’t show, and you get slightly worse at being a person.
What it actually costs
Not what you think. Not the hours.
The hours are the visible part, and the visible part is the cheap part. What it costs is subtler:
- Your judgment. Tired people make worse calls, and the calls in this line of work are the kind where somebody almost slips on an oil spot nobody briefed.
- Your temper. Which you spend at work and bring home empty.
- Your credibility at home. Every time you say “I’ll be there” and aren’t, you’re teaching people the actual rules.
- Your sense of what’s normal. This is the expensive one. After enough years, 7:15 on a Friday stops registering as unusual. You lose the instrument you’d need to measure the problem.
What I’d tell you
Not to stop being reliable. That’s not on offer, and honestly it’s not who you are. The trade you make when you become unreliable is worse than the one you’re making now.
But there’s a difference between being reliable and being infinitely available, and the system will never draw that line for you. It has no incentive to. It genuinely cannot tell the difference between a man who is fine and a man who has simply not said anything yet.
So the line has to come from you. Not as a speech. Not as a stand. Just as a fact you start operating from.
Start by noticing. The next time someone says you got a second, notice what happens in your body before you answer. There’s a half-beat in there where you already know what it’s going to cost.
You don’t have to act on it yet. Just stop pretending the half-beat isn’t there.
This is adapted from Chapter One of Don’t Let This Job Break You: How Systems Consume the People Who Keep Them Running.