* A fed-up Jack finally telling off his overbearing father-in-law, along with the implication that doing so has finally earned him his wife's respect.
** If you look carefully, you can see that his mother-in-law is smiling too, indicating that she's just as fed up with her obnoxious husband as everyone else.
** The fact that Jack and Lureen thoroughly support each other in that scene despite their marriage long having been DeadSparks--Jack tells his son "You heard your mother" when she chastises him for watching TV instead of eating dinner, Lureen sharply reprimands her father when he ignores Jack and turns the TV back on, etc.
* Ennis beating up two foul-mouthed, low-life biker types when they wouldn't stop cursing and making sexually explicit comments in front of his children.