It happened yesterday. The traffic ahead of me on the expressway suddenly came to a stop. I had no problem stopping. I looked in the rear view mirror and saw the semi coming at me. Sure enough he banged into my van. Thankfully I had a cushion behind my neck which prevented me from getting whiplash. The damage was minimal--may need a new bumper, but it could have been much worse. The driver was very apologetic.
Bonnie