[ You're not hallucinating, it's just Doctor Who. ]

Definitely not. My friend wondered the same thing. She was working there as a medical student, you see, that's how we met. [ Fondly, if wistful, ] ...Good ol' Martha Jones.

[ Like this is the most natural thing anyone's ever said, ] But we could breathe 'cos the space rhinos who'd kidnapped the hospital put a force-field round the building to keep the air in. Air bubble on the moon. To their credit, it worked really well, right up till we ran out of oxygen...