Plumb was a successful US pilot in the war against Vietnam. However, once his plane (destroy) by the enemy and he was forced to jump out.     (luck), with the help of the parachute（降落伞）he landed safely, but he was caught by the enemy and put  prison for 6 years.
One day, many years after the war, Plumb and his wife were sitting in a restaurant  he found a man staring at him.
Plumb looked back but didn’t recognize him. The man stood up and said, “You are Captain Plumb?” Plumb looked up at him and nodded. The man said, “You were   pilot soldier in Vietnam. You landed into the enemy land with the help of your parachute.”
  (embarrass), Plumb asked, “ How did you know all that?” The man continued, “Because I packed your parachute and      worked well.”
Plumb stayed awake that night. He wondered    many times he had either walked past his life saver without saying anything   ignored him completely.
Think about this for ourselves. We sometimes completely ignore the people around, who help us out when we need them badly. They are just    the man who was just there packing parachutes.