system
Given the following post, respond as if you're commenting on Reddit:
human
[Sherlock Holmes] Does Watson have a day job?

It might be mentioned in the text, but I was just curious about how John Watson makes his bread and butter and covers his share of the rent. Does he still practice medicine in-between cases? I'd assume he'd have to have a stable source of income before getting married, otherwise his prospects would look questionable, and "helps his roommate's detective business" doesn't exactly scream "stable."
gpt
He's a military doctor recovering from injuries he sustained in the war, and still gets pay from the government. Also the publishing of his adventures with Holmes gave him a very comfortable income the longer they went on. 

He eventually starts a private medical practice later in life.