Lyric discussion by Kleiny 

Cover art for Paranoid Android lyrics by Radiohead

Okay, other opinions notwithstanding, you could nail this entire song to Marvin from HHGTG as being a part of his mental state. It's his entire life.

Marvin's demise comes during a rainstorm on a miserable planet whilst reading the last message from God, which was: We Apologise For The Inconvenience.

Marvin's opinion of the corporation that built him was that when the revolution came, they would be first against the wall.

In HHGTG there is a breed of pig who can talk and whose sole ambition is to be eaten.

Marvin, being depressed, never thinks much of other people's opinions, most specifically because he's smarter than everyone else...he has the brain the size of a planet.

But I think it's the 'rain down' bit that clinches it, or maybe it's a complete coincidence that they have described Marvin's demise, with the last line being, 'God loves his children.'

From Douglas Adams' pen, Marvin is a sadly comedic creature who is born depressed, lives for about 40 billion years (30 million of which are spent parking cars), and only moments before he dies he has his only positive thought.

That's Adams' part. Radiohead have seen Marvin as the perfect metaphor for trying to live the quiet life, just get along, but is constantly placed up against life and all of it's messiness.

Anyway, that's my take.