answer: #Person1# suggests #Person2# beat the cat which ate #Person2#'s fish but not kill it.
documents: #Person1#: You are blue in the face, arn't you?
  #Person2#: The cat has eaten my fish, I'll kill it.
  #Person1#: But supposing your son killed like the fish, what do you think then?
  #Person2#: I'll beat him.
  #Person1#: So beat the cat, but don't kill it.