How could you not be haunted by that? My mate gave his keys to a friend of ours once. We were all out in the forest for a bucks night thing and he'd decided to take my brother, and go get some snacks from a nearby (20 mins) servo (gas station).
They had a skinful, and the driver only slightly turned at the T-junction. Got his knee impaled on the car key, I remember I could see right down to the white of his kneecap. My brother in the passenger seat was unharmed but his seat was broken at the waist somehow.
Its all so random and unforgiving once control's lost. What's going to happen is just going to happen.