Accidents just happen sometimes.
A few fridays ago I was driving on a main road that links two cities. I was behind a 08 car and we both were behind a truck doing about 80km/h. The conditions were wet. We were on a perfectly stairght road. The road margin is about 4" from surface of tarmac to soft margin, the yellow broken line is on the verge of the road,I.E if you are on the yellow line half your tire is off the road.
08 car infront of me slightly goes off verge and when driver tried to correct, the car spun around 360 a few times, entering otherside of road (Thank God, nothing was coming) and coming back to my side and flipping into ditch. It was really dramatic. When I got to the car it was completely off the road and wedged on it's side at 45 degrees. I had to climb onto back passenger door to open drivers door. Thankfully the two ladies inside were unhurt.
I was amazed how it just happened out of nowhere.