“Ghastly," continued Marvin, "it all is. Absolutely ghastly. Just don't even talk about it. Look at this door," he said, stepping through it. The irony circuits cut in to his voice modulator as he mimicked the style of the sales brochure. " 'All the doors in his spaceship have a cheerful and sunny disposition. It is their pleasure to open for you, and their satisfaction to close again with the knowledge of a job well done.' " As the door closed behind them it became apparent that it did indeed have a satisfied sighlike quality to it. "Hummmmmmmyummmmmmmah!" it said.”

“Stomp stomp. Whirr. Pleased to be of service.Shut up.Thank you.Stomp stomp stomp stomp stomp. Whirr. Thank you for making a simple door very happy.Hope your diodes rot.Thank you. Have a nice day.Stomp stomp stomp stomp. Whirr. It is my pleasure to open for you...Zark off....and my satisfaction to close again with the knowledge of a job well done.I said zark off.Thank you for listening to this message.”

“Come on,” he droned, “I’ve been ordered to take you down to the bridge. Here I am, brain the size of a planet and they ask me to take you down to the bridge. Call that job satisfaction? ’Cos I don’t.”He turned and walked back to the hated door.“Er, excuse me,” said Ford following after him, “which government owns this ship?”Marvin ignored him.“You watch this door,” he muttered, “it’s about to open again. I can tell by the intolerable air of smugness it suddenly generates.”

“Sorry, did I say something wrong?" said Marvin, dragging himself on regardless. "Pardon me for breathing, which I never do anyway so I don't know why I bother to say it, oh God I'm so depressed. Here's another one of those self-satisfied doors. Life! Don't talk to me about life.”

“Sir Isaac Newton, renowned inventor of the milled-edge coin and the catflap!""The what?" said Richard."The catflap! A device of the utmost cunning, perspicuity and invention. It is a door within a door, you see, a ...""Yes," said Richard, "there was also the small matter of gravity.""Gravity," said Dirk with a slightly dismissed shrug, "yes, there was that as well, I suppose. Though that, of course, was merely a discovery. It was there to be discovered." ... "You see?" he said dropping his cigarette butt, "They even keep it on at weekends. Someone was bound to notice sooner or later. But the catflap ... ah, there is a very different matter. Invention, pure creative invention. It is a door within a door, you see.”

“My name,' said the mattress, 'is Zem. We could discuss the weather a little.' Marvin paused again in his weary circular pplod. 'The dew,' he observed, 'has clearly fallen with a particularly sickening thud this morning.' He resumed his walk, as if inspired by this conversational outburst to fresh heights of gloom and despondency. He plodded tenaciously. If he had had teeth he would have gritted them at this point. He hadn't. He didn't. The mere plod said it all. The mattress flolloped around.”

“He turned slowly like a fridge door opening.”