Originally Posted by
noglider
On a rural road, when someone wants to move left to pass me and it is not clear whether oncoming traffic, I will block him if possible. If a vehicle comes from the oncoming direction, the driver passing me has to make a choice: Kill me or be killed. I don't want him to face that decision.
Roughly once a year, I will be on a small rise or hill and I see a car behind me in my helmet mounted mirror that is coming up on me, and I see a car approaching in front, but because of the slope, they can't see each other. When that happens, I get off the road if I can. Alternatively, I have held my left arm straight out with my open hand, palm facing aft. That signals the car behind to wait, and they usually do.