In the German dub, this is the last episode where Thomas Petruo voiced Plankton. Petruo later died in April 2018.
The episode aired in the US the day Thomas Petruo, the German voice of Plankton, died of an illness.
In this episode, when Squidward is reaching under Krabs desk to play the security cameras at the Krusty Krab, you see the words "Krabs wuz here 05-01-99. Which is the date that the first episode of SpongeBob SquarePants aired.