My car slithered through the hedge like butter, and then gave a sickening plunge forward.

I saw what was coming, leapt on the seat and would have jumped out.

But a branch of hawthorn got me in the chest, lifted me up and held me, while a ton or two of expensive metal slipped below me, bucked and pitched, and then dropped with an almighty smash fifty feet to the bed of the stream.
Slowly that thorn let me go.

I subsided first on the hedge, and then very gently on a bower of nettles.

As I scrambled to my feet a hand took me by the arm, and a sympathetic and badly scared voice asked me if I were hurt.
I found myself looking at a tall young man in goggles and a leather ulster, who kept on blessing his soul and whinnying apologies.