[slavik81]

My father always said that accidents tend to happen when two people make mistakes. Even when fault technically lies with a single party, it's often the case that both parties had a chance to prevent the mistake from becoming a collision.

For example, if a turning vehicle cuts off oncoming traffic, it could get hit. An attentive driver in the oncoming lane might see the problem and hit the brakes, while an inattentive or speeding driver might not react in time. The turning vehicle is at fault, but that doesn't mean they were the only one that could have prevented the collision.

There are sometimes events you cannot control, but a lot of those multi-vehicle collisions were preventable by either party.