answer: #Person2#'s house was broken into. #Person1# comes to check and thinks the burglar caused the mess. But actually, that's because #Person2# didn't clean it.
documents: #Person1#: What's the matter here?
  #Person2#: Somebody broke into my house in the morning.
  #Person1#: When did you find out?
  #Person2#: About 12 o'clock, when I came home from work.
  #Person1#: Apparently forced entry. The lock is battered to pieces.
  #Person2#: I wonder how the burglar did it.
  #Person1#: He is so unskillful. I have never seen such an awkward burglar.
  #Person2#: That's because we have a strong lock.
  #Person1#: Probably. Let's check the inside then.
  #Person2#: Did you find anything?
  #Person1#: Yes, the house was in a terrible mess. It was almost turned upside down by the burglar.
  #Person2#: Oh, er. . . sorry that's because we didn't have time to clean it.
  #Person1#: You mean it is not created by the burglar?
  #Person2#: Definitely not, sir.