A Dad's Final Words

I met Dan at a restaurant. We talked about his father, a World War II veteran, who appeared in a movie about the attack on Pearl Harbor. Dan's father said that his son needed to be strong so he turned the house into a prison camp. His father was the torturer and Dan was the prisoner. He believed that to survive any war, Dan needed to prepare for it. Torturing him was that preparation. When Dan's dad was about to die, here's what he said.

"Dan, I've been hard on you. I’ve caused you much pain. I don't want you to remember that about me.
"You've always asked me to go fishing with you. When you were young, we only went fishing together only once. That day you caught a fish. I saw the delight in your eyes. I was so proud of you. You made me happy.
"My son, when you think of me, forget the pain I caused you. Remember that day you and I went fishing together."
Then he passed away.