It started the way these things usually do in Seattle: a four-way stop near Ballard, a driver who clearly had right of way, and another driver who refused to take their obvious turn. One commuter, fried after a ten-hour shift and a miserable crawl down I-5 in the rain, pulled up to find a car already stopped and waiting -- well before they'd arrived, with the clearer claim to go first. Behind the rain-streaked windshield, the other driver wouldn't turn. Both hands were waving urgently to send the commuter through, as though the intersection required someone to direct aircraft.

For close to forty-five seconds, neither driver would go: whenever one tapped the gas, the other did too, and both slammed their brakes inches apart. Three cars stacked up behind one and two behind the other. No one honked. Through fogged glass and gray mist, the drivers kept waiting each other out until someone finally took the turn, feeling, as they put it, like they'd committed a crime simply by going.

Washington traffic law offers a surprise for drivers who look it up: there's no requirement to proceed strictly in arrival order at a four-way stop. The rule is simply to stop, then proceed once the way is clear -- normal yield rules, like left turns ceding to oncoming traffic, still apply regardless of who got there first. The law doesn't require most of the waiting in a standoff like this one. That comes from a social reflex.

The reflex is familiar enough locally to have become a regional joke. A Seattle-based insurance company has devoted entire ad campaigns to exactly this kind of overly polite, passive-aggressive standoff. The same instinct shows up off the road, too. Newer arrivals trying to build a social life here often encounter a city that's pleasant and polite, yet strangely hard to get close to. That pattern has its own well-known local nickname: the Seattle Freeze.

Getting past the freeze usually takes showing up again at the same places: neighborhood running clubs around Green Lake, the Ballard Farmers Market on Sundays, and -- more often than you'd expect -- the city's surprisingly earnest competitive pinball scene. Pinball may bring people into the room, but the bigger draw is the strangers happy to explain the rules to anyone who wanders in.

A four-way stop and a first cup of coffee with someone new expose much the same reluctance: nobody wants to assert a claim, but someone else doing so brings an equally strong discomfort. Traffic engineers have an actual rule for right of way. Away from the intersection, people are mostly still working out those rules for themselves.