YMMV / The Simpsons S 29 E 19 Left Behind

• Harsher in Hindsight: The episode emphasizes Ned finding fulfillment in replacing his deceased wife Edna as Bart's teacher, with Bart even saying that he thinks Ned could be "almost as good as her." He'd only be seen in this new role on a handful of occasions before being replaced by a new teacher without explanation in Season 33, with Season 34 clarifying that he was fired by Superintendent Chalmers.
• Informed Wrongness: For once, Homer is nothing but a supportive friend to Ned throughout the episode, but his impulsive prayer that Ned be fired from the power plant is treated as a life-ruining offense equal to Bart spitballing Ned after Ned declares that his doing so will be the Last Straw that will make him give up on teaching. However, not only was Ned working in a close capacity with Mr. Burns clearly a doomed affair from the start, but the rest of the episode shows that he has a remarkable knack for getting fired everywhere he goes due to his extremely poor judgement.