And to this end they built themselves a stupendous super-computer which was so amazingly intelligent that even before its data banks had been connect… - Douglas Adams

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.

The lights were off so that his heads could avoid looking at each other because neither of them was currently a particular engaging sight, nor had they been since he had made the error of looking into his soul.
It had indeed been an error.
It had been late one night — of course.
It had been a difficult day — of course.
There had been soulful music playing on the ship's sound system — of course.
And he had, of course, been slightly drunk.
In other words, all the usual conditions that bring on a bout of soul searching had applied, but it had, nevertheless, clearly been an error.

People who need to bully you are the easiest to push around.