DOCTOR John Watson
Quite a few fanfic authors deal with John's return to the UK from Afghanistan by having him switch from being a trauma surgeon to another specialism - be it general practitioner (GP as Mofftiss did) or working in an A&E department. Being a canon writer as much as possible, I do write him as being a GP in my later stories.
You may find it interesting to note that this is not as simple as it is often made out to be.
First of all, he would not be allowed by the General Medical Council to retain his licence as a surgeon; the periodic spasm of his dominant hand (due to PTSD) would disqualify him. Mofftiss were beding the rules horribly when they put him in Sarah's GP surgery.
In fact, to keep his medical licence he would need to re-train into another specialism.
To move from being a trauma surgeon to being a general practitioner would involve getting a CCT (Certificate of Completion of Training) in General Practice. It typically takes three years of full time training (so no leaping off to do cases with Sherlock whenever he called). Some credit may have been given (there are two different pathways; the Accreditation of Transferable Capabilities (ATC) or the Portfolio Pathway) which could cut a bit of time from that, but not much. He'd also have to pass the Membership of the Royal College of General Practitioners (MRCGP) exam. All of the above would take tuition fees, offset only slightly by whatever clinical hours he could get, ideally in a GP surgery- but they don't tend to hire a lot of salaried junior doctors. GPs are independent of the NHS and own their own practices (see another of my medical Britpicks on GPs)
To move from no longer being able to serve as a trauma surgeon to an A&E consultant would take a serious amount of re-training, too.
Doctors with specialized training in surgery, acute medicine, anaesthetics, or intensive care still have to complete higher specialty training in emergency medicine, which usually takes around 3-4 years, including completing the FRCEM (Fellowship of the College of Emergency Medicine) exams. And then there are specialised courses after that - TLS (Advanced Trauma Life Support), APLS (Advanced Paediatric Life Support), and Trauma Team Essentials Course (TTEC).
All of that takes tuition fees and time. So realistically, it wasn't an option for John as portrayed in the broadcast series.
All that said, it could be possible that he was starting the training before TRF, and completed it during Sherlock's time away, if you make that last three years. He might well have been in the final phase of training - working in-house at a surgery where he met Mary. That works a bit better than the idea of him as a GP locum in series one and two.












