I was driving on a quiet country road. The car infront of me started swerving all over the road. A big corner was approaching and the car just kept on going without slowing down at all. I backed right off, and watched this car go straight off the road at a corner through a hedge and into the tree.
I pulled up and called 999 (I'm in the UK) as I was running to the car. The old guy who was in the car was obviously dead. Like really smashed up. The emergency operator was telling me to feel for a pulse and try and check for any signs of life etc. I had to wait with the car and the dead guy for about 10 minutes before an ambulance and police arrived. It was bizarre as it was such a quiet road, and no one else was really around, just me, and a dead old man in a smashed up car.
The ambulance guys told me later that he had probably had a heart attack while he was driving and was dead before he hit the tree.