ELF: This thing we're in, this can full of sky. It's a habitat. Not a prison.
ELF: Even if a security system locks all the big doors in the shafts, there still have to be controls that are accessible from inside.
We might just be looking for a simple emergency exit.
BRISTLECONE: I can't imagine an emergency in which exiting into hard vacuum would help.
ELF: You either suffer from an insufficient imagination or insufficient emergencies.