While we're discussing motorists interactions with expectations to pass on the right, about a month ago on my way to work two guys in the same car were really upset at me taking the lane on a short stretch of road between lights (it's rare that I don't catch any motorists who pass me at the next light). When they had the oppurtunity to pass they of course did and 15 seconds later I'm pulling up behind them at the light. At this point, the passenger cracks his door open (in preparation for a dooring attempt I assume) as he watches for me to try and pass on the right. Sweet, huh?