I'm originally from Brazil, so I've seen my fair share of traffic awfulness :) What I see in Bellevue is mild in comparison, but just as an example, today someone cut an entire lane in front of me to enter their garage.
An almost weekly occurrence is seeing people stick half their car onto the street when leaving a parking garage I drive by often, and only then stopping to watch for incoming traffic. I've parked in that garage before and I know there's plenty of visibility from the exit; it's like people don't realize there's a whole chunk of metal before the driver's seat.