a bizarre happening...

I was driving along early this morning, singing along to the radio. I was driving behind a Transit van who was behind a recovery vehicle which had a car and a van on board.
All of a sudden it seemed as if someone had hurled an entire bucket of grit forcefully at my windscreen!
I couldn't see through the windscreen so I put the windscreen wipers on. It took ages to figure out a plausible explanation- What I think happened was this:
One of the recovered vehicles may have had a broken windscreen which finally gave out and the shards of glass flew up and hit my car. My bonnet was covered in glass for a while and then I managed to remove most of the remains with the wipers. I was lucky that the incident didn't put me or anyone else off as we could easily have had a crashed!
I feel so grateful that the majority of my car journeys are safe and non eventful.
I actually love driving. This was not something I would have imagined a few years ago when I couldn't drive.