On a very quiet Sunday morning ride along a 2-lane country road, a pickup truck passed me from behind at probably 45 mph within an uncomfortably close distance. There were no other vehicles anywhere in either lane and the road is almost perfectly straight, so he could certainly have moved left.

I shouted, "Hey!" at the top of my voice and to my surprise, the driver actually slowed down and lowered his passenger side window as I came up beside. Since he seemed to want to know why I shouted, I yelled, "Leave more room". Moving at about 15 mph, the wind noise in my ears prevented me from hearing whatever he replied.