http://wh40k.lexicanum.com/wiki/Deathwing_(Space_Hulk_Expansion)
Sadly, all the good jokes about being killed by a book have been made already.

Guess you hit the books a little too hard...

Oh, come on, you know there are more book jokes to be made yet.

Chaos Space Marine, fair enough
http://wh40k.lexicanum.com/wiki/Codex:_Chaos_Space_Marines_(4th_Edition)#.U9wG1WO2Vg8

But t was the actual "book" itself.

http://wh40k.lexicanum.com/wiki/Kill-ships#.U9xzxfRDt8E
Automated "Exterminatus" machines... why the fuck?

And people say that the Imperium doesn't use its technology intelligently.

http://wh40k.lexicanum.com/wiki/Tyranid_Prime#.U9yx6xB_vXU


OUCH.

Ah yes the good old papercut death, it's the way to go.

http://wh40k.lexicanum.com/wiki/Codex_Astartes#.U9z0DPmSw-E


SPIRITUAL LIEGE! WHYYYY!

I have no idea why my country would want to kill you. Sorry about that.