13 Small Details You Only Notice Rewatching The Office
5. The Aquarium Screensavers After Michael Falls In The Koi Pond (And The Whiteboard Messages)
Koi Pond, the sixth episode of Season 8, is built around the fact Michael falls into the koi pond outside of Dunder Mifflin, becoming the subject of a number of jokes afterwards.
While a lot of the gags are the point of the episode, the writers also ensured to sneak a few in that aren't so obvious on first watch, and the best of them is the screensavers - as seen when they're in the meeting room, a number of computers have changed their desktop screensavers to aquariums (or general underwater settings) to further mock their boss.
In that same scene, Michael is making a list on the whiteboard of things people don't want to be mocked for, including the koi pond. It's understandably a goldmine for gags, with highlights including Erin - Orphan and Ryan - Kelly.