Open your mind and realize that there are a countless number of situations that could happen on the road at any time.
My rollover was not caused in any way by my driving too fast or dangerously. Someone decided to run a stop sign which caused the driver next to me, who was going in the same direction as me, to swerve into my lane....hitting my front quarterpanel. I had nowhere to go because this road has no shoulder. The angle at which his car hit mine somehow rolled my car over.
At the moment of impact I was going ~30 and the speed limit was 45.