First a silly story. Benji and Ian have been looking at Wikipedia entries for bodies in the Solar System. While doing this, they encountered the term trans-Neptunian objects, which Ian explained and Benji understood as “anything out past Neptune.”
Later, we learned that there’s a new dwarf planet out in the Kuiper Belt (currently euphoneously named 2015RR245), and Benji’s comment was classic: “OH! Daddy! This must be a trans-Neptunian object!”
After that, most of our morning was devoted to planets.