Hank and Joseph's argument in the kitchen after The Reveal that Hank got high on drugs and caused a car accident that left Glen mentally disabled and unable to play baseball.
After Joseph is found guilty and everyone else clears out of the courtroom, Hank remains where he is, then he breaks down into tears.
Unintentionally Unsympathetic: When Hank confronts him in the courtroom about why he punished him so harshly for driving while intoxicated when he already hated himself for ruining his brother's life, Joseph admits that when he looked at Hank, he saw Mark Blackwell, and he blamed himself for letting him off lightly, leading to him murdering his girlfriend. He admits in court that he took out his anger at himself on his son. While he was to some extent obligated to throw the book at Hank to avoid accusations of conflict of interest, the admission he punished Hank for something completely unrelated to him can lose him some sympathy.