I rewatched The Frycook That Came From All That Space and there’s one line I noticed that tells us something interesting about food service drones and drones in general.
Sizz-Lorr hired his employees. The food service drones (besides Zim, who was assigned) were hired. And we know that drones are paid for their work, albeit by an extremely low amount as shown with Table Headed Service Drone Bob.
Since drones are extremely low class citizens with basically no rights, it wouldn’t make sense if they were capable of choosing who they work for. It would defeat the purpose of them being low class citizens that are nearly indistinguishable from slaves.
This means that mass amounts of drones may be owned by a single irken or group of irkens, and people like Sizz-Lorr can hire drones from them for their own purposes, like hiring a food service drone to help run a restaurant or hiring a table headed service drone (also known as a general service drone) as a personal slave.
