One of my siblings changed a flat tire on their Le Car a long while back and neglected one important thing, to put the lug nuts back on. A short time later they were driving the car and off came the tire. It then proceeded to land in the nearby creek and floated down it. Luckily about a mile and half downstream the tire got hung up on a tree branch before it made it out to the lake. This is where attention to detail would have been a good thing in avoiding this situation to begin with.