There was a stalled vehicle in a traffic lane. The vehicle ahead of me was a large that hit the stalled vehicle. I couldnât see what he hit but he came to a dead stop and I couldnât avoid him. My problem is that the airbag under the dashboard on the driver side hit my shin with such force that it caused an abrasion that didnât seem bad at first but developed into a wound requiring a large hematoma and surgery to remove it and to have skin graft.