I have a 6 AM rule.

If the airport dropoff requires me to wake up before 6, I am operating in dangerous territory. When I am awake, I am awake — but the manner in which I arrive at “awake” matters enormously. I shake the sand out slowly. I need time to build momentum. If that process starts before the sun has any intention of showing up, I will spend the rest of the day staring at walls, losing verbal sparring matches I would normally win, and napping in chairs I had no plans to sit in. I am, essentially, a human screensaver.

My wife has no such limitations. She can wake at 3 AM, drive to the airport, come home, and go back to sleep like none of it happened. I find this both impressive and deeply unfair.

The labor of being the free Uber isn’t actually free, by the way. It’s paid for in brain cells and accidental afternoon naps.

Earlier this year — February, maybe, or early March, the details are fuzzy in the way that only pre-dawn experiences can be — I did a 5 AM dropoff. The wakeup was somewhere around 4:30. I won’t describe the rest of that day except to say I spent most of it trying to goose a single brain cell into firing.

So I updated the policy. One pre-6 AM spousal run per quarter.

This coming Saturday, her flight is at 5 AM. The math on that wakeup is not complicated. She asked me something about the flight options — “5:00 or 1:00?” —, and I thought my preference was obvious. She said, “Oh, they gave me the 5:00 flight.” There I was. A man of principle, staring down his principles.

I haven’t decided yet what I’m going to do about that. A paid Uber is getting my vote, but votes change

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Now, the rules are not the same for everyone. I’ve developed what you might call a tiered system. It is not written down anywhere, but it is very real.

Hockey boys know the score. They’ve seen enough early practices to understand that some hours of the day are not meant for human activity. If their flights are reasonable, I’m happy to run them. If they’re leaving at what the military calls 0-dark-thirty, they’re calling an Uber without any hurt feelings on either side. This is an understood arrangement.

Exchange students have, in my experience, been European, and Europeans apparently book flights like reasonable people. Arrivals tend to land in the afternoon. Departures can get a little early, but my wife handles those. She, as previously established, is built for this.

Family is where the policy gets complicated, mostly because family comes with feelings attached to it. There is an ongoing negotiation in our house about whether saving forty dollars on an early flight is worth what it costs in parental sleep and the general goodwill that holds a family together. I have opinions on this. I keep most of them to myself.

The honest truth is that family members (not our kids) who visit us for weddings usually have rental cars. Which means I can say, with complete sincerity, “Too bad you’ve got the rental — I would have been happy to run you.” And I might even mean it. I just don’t have to specify that my happy shuttle service has operating hours, and those hours start at 6.

The OKC airport, for what it’s worth, is a genuinely pleasant experience. Easy drive, easy TSA, more marijuana dispensaries along the route than I remember from DFW but fewer traffic lights, so it probably evens out. The only real drawback is that flights out of here tend to leave early. If you’re connecting through Dallas or Denver to get somewhere real, your day starts at an hour that tests people.

It tests me, anyway.

My wife is fine.