Cars

The scrapyard was full of vehicles. They were lined up in rows throughout the huge lot and they were stacked on top of each other, three high.
There was seemingly no system to the way they had been placed and the man wandered around, looking for the right make and model with the correct kind of wing mirror he needed.
After half an hour he thought he saw what he was looking for. A car at the top of a pile seemed to fit the bill.
He climbed up to take a look.
As he looked at the mirror a man inside the car peered out at him.
This was unexpected to say the least and the man who needed the mirror slipped and fell between the stacks of cars, knocking himself unconscious in the process.