Riding to work, 4-lane highway. Left lane. Signalled to change lane to the right, and moved over to the right side of the left lane, about 2' from the white line. Mirror clear, but when I checked my blind spot I realized there was a car there. So I stayed in my lane waiting for a space. Then I realized that the car that was behind me was actually passing me while I was still in my lane - he was sharing my lane. Apparently he couldn't wait for me to exit the lane before he got past. He passed me within inches (I was doing about 30, he was doing about 50), then as he got past me he nearly rear-ended the stopped left-turner I was changing lanes to avoid. The guy who was next to me slowed down and gave me an exit. The impatient guy got stuck so close to to the stopped left-turner than he had to wait and I never saw him again. All went down in seconds. I swear his mirror was inches from my arm as he shot past.