Have you ever had to call 911, or if you are in anther country whatever the emergency number is?
I don't really know what go me thinking about this, but it is something I am curious about. I have called it twice.
The first time I was in college and lived in an apartment complex next to the junior high/high school. I was heading home after class as all the high schoolers were heading home. I heard brakes squeal and looked in my rear view mirror to see that a car in the oposing lane stopped and in front of it there was a boy splayed out on the road off of his bike. I called 911 and they were asking me all kinds of questions that I couldn't answer from my truck so I pulled in and parked and walked back to the accident. The boy eventually was able to get up and even talked on my phone to the dispatcher, then the ambulance arrived. They checked him out and he was ok, but of course I'm sure the girl who was driving the car got ticketed.
The second time I was driving down here for my job interview and it was raining pretty hard all day. I came through a canyon on the I-70 corridor through Utah and came around the corner where I saw a big rock in the middle of my lane. I was able to manuver around it, but it was getting later in the evening and I worried that someone might come around the corner in the dark, not see it and hit it. As soon as I got into cellular range I called. The dispatcher really hastled me on trying to describe the size of the rock. I tried to tell her it was a really big rock, or a small boulder. If a truck with high clearance went over it they might clear it, but if a car went over it, they would have severe damage. She still wanted to know what object I could compare it to in size. Some time later after I moved down here I saw the Utah Department of Transportation fixing that particular spot in the road where the rock slide caused damage.