Lisa takes up astronomy and causes the town to go crazy from sleep deprivation when she protests the light pollution in the sky.

* DisproportionateRetribution: Fat Tony orders someone to shoot a bird because the bird landed on his hood ornament.
* {{Foreshadowing}}: Carl briefly recalls his childhood in Iceland. Carl's family is the plot point of [[Recap/TheSimpsonsS24E21TheSagaOfCarl The Saga of Carl]].
* MotiveDecay: At first, Bart wants to steal a hood ornament to impress his fellow students. He eventually forgets why he wants the hood ornament but still tries to steal it.