crash

Dreamt there was a head on crash between a truck and a school bus. I saw the metal crumple even though I was also behind the truck. I felt like it was somehow my fault. I saw all the metal pushed up against the school bus driver. His head was tilted back and he didn't seem conscious.

http://www.dreammoods.com/dreamdictionary/a.htm
Dreaming that someone is injured in a car accident means that you cannot control the action of others. They have to live with the consequences of their own decisions.