The door refused to open. It said, “Five cents, please.”
He searched his pockets. No more coins; nothing. “I'll pay you tomorrow,” he told the door. Again it remained locked tight. “What I pay you,” he informed it, “is in the nature of a gratuity; I don't have to pay you.”
“I think otherwise,” the door said. “Look in the purchase contract you signed when you bought this conapt.”
… he found the contract. Sure enough; payment to his door for opening and shutting constituted a mandatory fee. Not a tip.
“You discover I'm right,” the door said. It sounded smug.
From the drawer beside the sink Joe Chip got a stainless steel knife; with it he began systematically to unscrew the bolt assembly of his apt’s money-gulping door.
— Ubik, Philip K Dick, 1969
Apple read Ubik and took the lesson to build everything with proprietary screw heads.
He searched his pockets. No more coins; nothing. “I'll pay you tomorrow,” he told the door. Again it remained locked tight. “What I pay you,” he informed it, “is in the nature of a gratuity; I don't have to pay you.”
“I think otherwise,” the door said. “Look in the purchase contract you signed when you bought this conapt.”
… he found the contract. Sure enough; payment to his door for opening and shutting constituted a mandatory fee. Not a tip.
“You discover I'm right,” the door said. It sounded smug.
From the drawer beside the sink Joe Chip got a stainless steel knife; with it he began systematically to unscrew the bolt assembly of his apt’s money-gulping door.
— Ubik, Philip K Dick, 1969
Apple read Ubik and took the lesson to build everything with proprietary screw heads.