Story from real life.
One of my friend was traveling with a friend in the Kamaz.
They were on the right side of the road, no one ahead.
Standing in front of a traffic police inspector stopped a truck that was driving ahead of us.
In its body lay a bunch of iron rods getting out two meters to the left, beyond the dimensions of the machine.
Truck driver braked sharply.
At this moment, my friend looked to the right passenger window, despite what was happening.
In his head there was something unimaginably - vision become very good.
Looking at the right distance he was able to see very well all things, even very far away, as if the eyes framed glasses with good magnification.
Then came a strong sense bend down and pick up what has fallen.
For example, as if you are holding in your hands a glass goblet accidentally been dropped, and try to catch him right before he fell.
Lowering his head down to see what was there fell he noticed by corner of his eye that something was coming from the front.
Not paying attention to it, he bent down .
At this moment there was a screech of brakes.
Bunch of iron rods broke glass passing through the cabin thoroughly, just above his head.
Scary to imagine what would have happened if he had not put his head down.
This incident happened 15 years ago, but remembered well.