There are two competing schools of thought when it comes to Game of Thrones spoilers. One holds that anything that hasn't appeared on HBO is a spoiler that should be kept tightly under wraps. The other argues the books have been available for years, and viewers who don't want to be surprised by unaired plot details have a responsibility to read them.
Not every scene from George R.R. Martin's immense A Song of Ice and Fire series can be filmed for Game of Thrones. Something has to be cut, even if it's something Martin himself really likes.
The Cinnamon Challenge. You know the rules: Swallow a tablespoon of ground cinnamon in under a minute without drinking anything.