Childhood lessons

Do you know the story of the three little pigs and the big bad wolf?

Papa: Along came a big bad wolf and he said, "Little pig, little pig, let me in."  "No!" said the first little pig. "You are the big bad wolf.  I will not let you in."  "Then, I'll puff. And I'll huff.  And I'll blow the house down!"

David, what must you do when a stranger knocks and asks you to open the door?

David: Take the key and open the door.

Papa: No!! You cannot do that.  You cannot open the door to strangers.  David, listen to the story well. 
The second pig finished building his house and was enjoying his lunch inside it when he heard a knock on the door.   "Little pig, little pig, let me in."  "No!" said the second little pig. "You are the big bad wolf.  I will not let you in."  "Then, I'll huff. And I'll puff.  And I'll blow the house down!"

So, David, what must you do when a stranger knock on the door and asks you to open it?

David: Take the key and give it to him.

Papa: No!! You cannot do that.  You cannot give our keys to strangers.  When there is a stranger at the door, tell Claire.  She will know what to do. 

Let me continue the story.  So, now the third little pig finished building his house and was baking in his house when he heard a knock on the door.   "Little pig, little pig, let me in."  "No!" said the third little pig. "You are the big bad wolf.  I will not let you in."  "Then, I'll huff. And I'll puff.  And I'll blow the house down!"

David, do you now know what to do when a stranger knocks on the door?

David: Take the key and ask Claire to open the door.