A voice behind them said, "It is." The voice was low and hopeless and accompanied by a slight clanking sound. They span round and saw an abject steel man standing hunched in the doorway.
"What?" they said.
"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 into his voice modulator as he mimicked the style of the sales brochure. "All the doors in this 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 sigh-like quality to it. "Hummmmmmmyummmmmmm ah!" it said.
Marvin regarded it with cold loathing whilst his logic circuits chattered with disgust and tinkered with the concept of directing physical violence against it Further circuits cut in saying, Why bother? What's the point? Nothing is worth getting involved in. Further circuits amused themselves by analysing the molecular components of the door, and of the humanoids' brain cells. For a quick encore they measured the level of hydrogen emissions in the surrounding cubic parsec of space and then shut down again in boredom. A spasm of despair shook the robot's body as he turned.
"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.