It does remind you just how much we're dependent on electricity....I had to go to the dentists, alarms going off everywhere and people wandering around aimlessly in a post apocalyptic daze. Dentists completely screwed, I said couldn't he just get me to open my gob near a window and take a look, but apprently not.
Could have done dentistry 'Beano style' by tying string round the tooth and the door handle - not much help for a filling though.