"The ship did. All by itself."
"Huh?"
"Whilst we were in Improbability Drive."
"But that's incredible."
"No Zaphod. Just very very improbable."
"Er, yeah."
"Look Zaphod," she said, patting his arm, "don't worry about the aliens. They're just a couple of guys I expect. I'll send the robot down to get them and bring them up here. Hey Marvin!"
In the corner, the robot's head swung up sharply, but then wobbled about imperceptibly. It pulled itself up to its feet as if it was about five pounds heavier that it actually was, and made what an outside observer would have thought was a heroic effort to cross the room. It stopped in front of Trillian and seemed to stare through her left shoulder.
"I think you ought to know I'm feeling very depressed," it said. Its voice was low and hopeless.
"Oh God," muttered Zaphod and slumped into a seat.
"Well," said Trillian in a bright compassionate tone, "here's something to occupy you and keep your mind off things."
"It won't work," droned Marvin, "I have an exceptionally large mind."
"Marvin!" warned Trillian.
"Alright," said Marvin, "what do you want me to do?"