Throw the switch

I am owed a second door to be hung in the entrance of my studio space, and because of this I was given a tour of the inner workings of the place...(the old doors are stored here apparently). Once inside this mechanical room, I was thinking why don't I have my camera!?! Lights are flashing, water is running, and strange whirring noises of the buildings guts are all around me.

I see my door, I say thanks and I run back to my studio, grab my camera and duck back down the hall hoping they hadn't locked the door.
Lucky me...
snap snap