And I mean fault. I refer to the 'oh, please, you go first' attitude that Portland drivers have at stop signs and the like. They even courteously wave you through when they have the right of way.
Hell, it's not even uncommon for them to stop and wave you through when you have a stop sign and they don't. That's not being courteous, that's just silly. As this article points out:
"There are many drivers who think that yielding right of way is always a courtesy, when in actuality it can be frustrating or even dangerous,"