answer: John feels it unbearable that #Person1#'s relatives came to stay with them for a week without warning. #Person1# tells John it's the custom of the old-fashioned people from the Chinese countryside.
documents: #Person1#: Well, I can't believe your uncle and aunt came to stay with us for a week, and they did not even call us in advance.
  #Person2#: John, they are old-fashioned people from the Chinese countryside. That's their custom.
  #Person1#: I know, but it is hard for me to get used to your relatives coming to visit us, and without warning.
  #Person2#: Don't your relatives visit other relatives?
  #Person1#: Yes, but Americans never visit without calling in advance, and they almost never stay overnight.
  #Person2#: I think that maybe Chinese families are closer than your families.
  #Person1#: I think you're right!