At the Rave'N school dance, Tyler overhears Eugene's plan to visit the monster's cave.

Source: https://www.buzzfeed.com/kaileyhansen/clues-that-foreshadowed-the-real-villains-in-wednesday

Former St. Eugene's pupil Dana cuts the ribbon to officially open the new playground at the school on Monday.

Source: https://www.derryjournal.com/news/people/ireland-eurovision-winner-dana-goes-back-to-school-to-open-new-playground-in-derry-4427486

It wasn't until after Eugene's death that the USPS moved the start time an hour earlier to 7:30 a.m. for all Texas letter carriers to help them get ahead of the heat.

Source: https://www.wral.com/usps-employee-dies-delivering-mail-in-extreme-heat-sent-disciplinary-letter-prior-to-death-for-not-delivering-fast-enough/20936688/