I was randomly reminded of the goblins in the Discworld novel Snuff, specifically the spiritual/religious practice of Unggue unique to the goblins. The book spends a lot of time establishing how the goblins, despite being considered little more than vermin by most of the other races on the Disc, are actually an incredibly unique and special culture that is completely unknown due to the bigotry against them. However, naturally, Discworld can't just do this simply. Sir Terry Pratchett could never just write them as having some beautiful, unique & exotic culture that's better than everyone else's, because that would be disingenuous. Instead, he uses it show goblins as people - people who, naturally, are inclined to ignore the more... inconvenient parts of their religion. Thus, Unggue Had is mentioned as being the more "lax" form of Unggue practiced by certain sects of goblins in areas where storing every bodily excretion can be a bit impractical. It's just a lovely bit of extra work put into it that makes them seem more than a stereotypical "wow look at how beautiful and unique their culture is" - instead, they're displayed as people whose culture changes as they change, rather than being a static monolith. And I think that's neat.
