If I'm on a 2-lane road, and gravel next to the white line... a car is passing me and having to cross the center line. Meanwhile, a big gravel truck is approaching over the hill in the oncoming lane. The 4000 lb car to the left of me can either wrestle with the 25000 lb gravel truck, or the 200 lb me. Now guess why I'm willing to hit the gravel and let the car back over.
