[ericthered]

"There is only the one door in and out"

Olive presses further, does some research, and finds the following:

There are six ways in and out of the room, though you only end up in four places. The normal door works of course. Each pod opens into the pod next to it in case of a fire. This is hard to trigger, as the place isn't very flammable, but it has happened. This makes for two exits on each side, but they open into adjacent pod rooms. The food and laundry elevator can be expanded with the right tool to get into the cargo and transportation area below. Expanding the elevator without permission is considered evidence of criminal activity, kind of like breaking a store window.

The vents are far too shallow to move through. The ceiling is part of the ship exterior, as is the wall behind the food dispenser.