Kafka dealing with an emotionally abusive father: "Dearest Father,
You asked me recently why I maintain that I am afraid of you. As usual, I was unable to think of any answer to your question, partly for the very reason that I am afraid of you, and partly because an explanation of the grounds for this fear would mean going into far more details than I could even approximately keep in mind while talking. And if I now try to give you an answer in writing, it will still be very incomplete..."
He asked his mother to give the letter to his father and she did not, but gave the letter back to Kafka.