answer: #Person2# comes to deposit some money but #Person1# finds 5 of the notes are counterfeit.
documents: #Person1#: You're here to make a deposit, is that correct?
  #Person2#: Right. I'd like to deposit 2, 000 RMB into my Current Account.
  #Person1#: No problem. Could I have the cash and your Bank Book, please? Oh dear... there seems to be some problems here...
  #Person2#: What? What's wrong?
  #Person1#: I'm sorry but 5 of these notes seem to be counterfeit. Look at this watermark, do you see it?
  #Person2#: It does look a little strange, I didn't notice that before.