Oh, this happened just a few months ago:
I was at my Great Aunt's farm in Tennessee, which as you could guess was boring, so I was riding her 4 wheeler in the cow pasture behind the house (about 10-12 acres). Now, I do not have a good concept of how fucking fast I go when driving a vehicle. Now, there is a drainage pipe that feeds into a ditch that crosses part of the pasture, it is about 5 feet deep, and there is a small bridge of ground that one must carefully cross to get across. Now, being the machoistic dumbass that I am, I decide to gun it over this narrow expanse of land. Bad Idea. Very bad Idea. It all happens in slow motion. Two wheels come off of the ground, slip to the right, and the whole damn ATV flips the fuck over... I land under it, with a handlebar jammed into the ground 6 inches from my chest and a hatchet that was in the front basket stuck a few feet away. I gain superhuman strength somehow and Push the 400 pound ATV off of me; walk ten minutes back to the house, tell them I wrecked their ATV and see myself in the mirror... Covered with dirt, grass, and blood. When I was in the air, I though I would die... And it wasn't fun... I now have an irrational fear of ATVs...