Oh, that's interesting I never paid attention to where the office was in that flashback or whether it was the same office ... I 100% love the idea that what's now ZYL's office was a storage room during ZXC's time, and ZYL specifically made it his office because, well, fire pole! :D

(It's always been my headcanon that the SID office is an old converted firestation - I feel like that fits well with the architecture - but it's very true that ZXC in an office with a fire pole is very "does not compute". *g*)