Final answer:
Brian's dream job of being a night watchman did not turn out as he expected, and he most likely quit after one day. The option (1) is correct.
Step-by-step explanation:
Brian's dream job of being a night watchman did not turn out the way he expected. From the information provided, it is not explicitly stated what happened to his dream job. However, based on the given texts, it can be inferred that his job was not what he anticipated.
The text mentions his assumption of the job being a sinecure, which means an easy job with little work. However, the texts also suggest that he experienced hard work, loathing, and disappointment with his job, indicating that it did not meet his expectations. Therefore, option (1) Quitting after one day would be the most likely outcome for Brian's dream job.