Since we last corresponded, we have had two "missions" where the space pirates show that they are kindof crap at being space pirates, and our protagonist has washed up on an island full controlled by a cult of cannibals.

Particularly in the "Eaters" chapter there is some pretty intense imagery of violence, but at least it is connected to the narrative of our protagonist.

It isn't really clear how these narrative detours relate to the main story line, but it gives the protagonist a chance to explain (via complaining) the Culture.