When I was 6 or 7, during a thunderstorm a tree branch broke off of a fairly large tree and fell through my window. Luckily for me at the time, I was sitting on the floor with my back against my bed, which was on the wall with the window. If I had been laying in bed, the tree branch would have hit me and I would have been cut up from all the glass around me.

Another one is when I was a little bit younger, me, my sister (who was 3 years younger than me, and my mother were sitting in our families van ready to head somewhere. My mother had forgotten something inside and went to go grab it, leaving me and my sister in the van for about a minute. My sister gets out of her booster seat and manages to get in the driver seat. She then takes the van out of park and our van starts rolling down the hill in our bad yard, which is pretty steep. We end up hitting a tree in our backyard and I blacked out for a few hours. Me and my sister were fine in the end, but neither of us had our seat belts on and we hit that tree at least 20MPH.