This is actual video from the VC-100 in my wife's car on the way to work. She was in a right turn lane yielding to oncoming traffic and gets rear ended by someone not paying attention. This video demonstrates the fact that the actual contact point of the two vehicles is not necessary to prove fault in an accident.

Having a dash cam shows what you were doing when you got hit. Now, it may actually prove that you were at fault, but should you not be then you have video evidence to back up your version of what happened.

This was not a serious accident, but it is a good idea of how even a fender bender looks.
 

As others share their videos, I will post them here.