I have tried keeping my blinking rear light on to be more obvious to the zombies flying past me on narrow roads. This has actually made it worse - I seem to be treated more like another car and I get passed even closer. I think it sends the signal that I am "protected" like a car, or some other equally crazy idea I can't even understand. I ride about 6 inches from the white line on the right too, for self-protection. When I have to take even another foot of lane to avoid glass, cracked pavement, or a pothole I can feel the hate from cars deliberately buzzing me in "their" territory. Insane! The glazed-over pseudo-stupid ("I know 'm doing something bad, but I'm going to pretend I don't realize it...") looks on the drivers are actually the scariest part.