Final answer:
The provided text does not contain enough information to determine the conflict faced by Mr. Nuttel related to open windows at the Sappleton residence. Reference to a specific work such as Saki's 'The Open Window' would be needed for a precise answer.
Step-by-step explanation:
The conflict Mr. Nuttel faces upon arriving at the Sappleton residence due to open windows is not explictly referenced in the provided text snippets.
These excerpts appear to be from different contexts, including discussions about law and one's home, a dinner setting with futuristic elements, and a scene involving a county attorney and a sheriff.
To accurately determine Mr. Nuttel's conflict with the open windows, more specific information or the text in question, such as the title and author of the work, would be required.
Usually, we could draw from the story 'The Open Window' by Saki, wherein Mr. Nuttel faces a social conflict inflamed by a tall tale about an open window during his visit to the Sappletons, but this reference is absent in the given passages.
Therefore, without the relevant context, it is challenging to provide a definitive answer to the student's question.