Last Friday, my coworker was driving along with her two kids in the car, minding her own business. She was crossing the intersection on a green light as one is supposed to do, when a vehicle to her right decided to just jump on into the intersection. Apparently that driver didn't happen to see the HUGE WHITE TRUCK my friend was driving and slammed into the passenger side, where her son was sitting. Everyone was fine, save for the possible broken ankle of the son and the seatbelt marks on everyone, but the huge white truck was completely totaled.
That same day, another coworker of ours was in a five-car pileup. Hers was the first car stopped at a light. The fifth car was driven by an elderly man, who plowed into the fourth car hard enough to cause a chain reaction all the way to the front.
Both of these coworkers were obeying the laws, keeping within their limits and these boneheads just hauled off and caused terrible accidents. You can be the most perfect driver on the road, and if you happen to cross paths with some idiot, you could be seriously injured. The reminders that these things are possible at any time with no warning makes my brain hurt.
I know, cocooning yourself in the safety of your home is no way to live. But it's easy to forget that the world is a dangerous place.