It's Picture Day at 3rd Street and Gus has never had one due to moving around...
Recess
Season 3 Episode 10: Lord of the Nerds
When TJ breaks his collar bone he is forced to miss recess for five weeks. Finster banishes him to room 51; home of the infamous pale kids. The pale kids are a group of rejects who stay inside during recess to do absurdly nerdy things.