I had another one about 15 years ago. At the time, I lived in a subdivision out on the edge of town, and I took a sequence of country back roads to work. (The area is built up now, but I've since moved anyway.) One morning, I was going down a lightly-traveled road that was bordered on both sides by deep ditches. The area was undeveloped and I hardly ever saw any other traffic on that road at that time of morning. So imagine my surprise when I approached the crest of a hill and all of a sudden a pickup truck appeared coming the other way, going very fast and straddling the center line. I edged over to the right in my lane, but the pickup kept moving further and further over towards me. I dropped my right wheels off the pavement, and still the truck kept coming. Finally, it was fully over in my lane, and I was partially over in the ditch with my left wheels just barely on the pavement, still doing about 50 MPH because I was afraid that touching the brakes would cause a spin. The truck passed inches from my left side, and then I managed to yank my car back onto the road just before reaching a section where the shoulder was nonexistent. About 30 feet more, and I would have been in a deep ditch, probably not visible from the road, and there's no telling how long it would have been before anyone found me. Just after he passed me, I saw him yank his truck back into his lane, in my rear-view mirror.
Somewhat surprisingly, my reaction to that was not relief, but incredible anger. I whipped the car into a bootleg turn and went after that truck. I had intended to get his plates and then call the police to report a drunk driver, at the very least. But when I got up to 70 without matching speed with him, I figured it was just too dangerous. I never got close enough to get his plates. The last I saw of him, he was running a red light to make a left turn onto another road.