Shaken Babies?
http://www.reuters.com/news/video?videoId=81490
Remember this? Found whilst looking for other info.
Have a look (although it can make you feel abit queasy - but no one seems to be injured) and tell me why there aren’t dozens of cases of Shaken Baby or Sudden Impact (onto a soft surface of course - that way you don’t have to have impact marks).
Maybe ’experts’ over there haven’t realised they could be making thousands by giving their ‘opinions’.