One day a postman came to a house but found no one was at home. He went to the next house and asked the neighbour, "Excuse me, when is Mrs. Smith coming back?" The neighbor said, "Oh, I don't know her well. But I know she works from Monday to Friday. And some Saturdays and some Sundays." "So when does Mrs. Smith come back?" “She leaves about 7:40 in the morning and gets home at about 5:30. But sometimes she is late, because she goes to the store.” "Oh, I'm sorry I can't wait for her. Would you please give the box to her?" "Oh, no. I don't know her well. Her kids are coming from Tokyo this evening. She is shopping right now. She wants to buy some food her kids." "But would you just pass the box to her please?" "Oh, I'm sorry. I don't know her well."