Eye contact doesn't always stop them.
On one route home there is a 1mile downhill through a 30mph zone. In the dark, in winter, I usually take primary, as its easy to hit 30 going down there.
One night this car tries to overtake. Visibility (for me) is poor, and there is a car 1.5 car lengths in front of me, so there is no way I'm going to get pushed towards the gutter or have to brake to allow a car to push in. As the overtaking car tried to pass, I drifted out a bit. It came alongside me, with the driver looking across at me. By now, they were actually over the white line, with oncoming traffic, and no room in front of me to pull in. They gave in and dropped back, but only just in time.
I could have hit my brakes, pulled in to the kerb and let them in. I would have had to hit the brakes again, to avoid the next car, and the next and the next. Just not safe or sensible.
I've had similar happenings, probably nearly once a week on that road. Never had a car actually hit me, like Spikey described. That sounds like a random loon.