Ugh, in the news here a few years ago, they showed a video of a lady jumping out of her car so she wouldn't be in it when it slid into another car. The news anchor advised people to stay inside of your car. It's a cage. You're safer inside that cage than lying in the road.
I feel like people forget that the conditions are like that for everyone and not just themselves, so they think it's ok to mill around the scene while waiting for emergency services. It's a terrible idea to do so, and it's absolutely safer in the car. If for one reason or another you have to exit the vehicle, get far away from the scene; like at least across the ditch or far into someone's lawn
and it all starts with that strong guy pushing his ex’s car into the blue van. At least that’s what it looks like, and I refuse any other interpretations.