You know, it wouldn't even have to be an AU - just Harry is lurking in John's office, and happens to notice an irregularity in some paperwork which was lying around that everybody else missed, and John grabs him and squeezes him and refuses to let him go, because wizards, whatever, magic-users are a dime-a-dozen in Chicago these days, but someone who's a natural at accounting is priceless.
Re: Accountancy
You know, it wouldn't even have to be an AU - just Harry is lurking in John's office, and happens to notice an irregularity in some paperwork which was lying around that everybody else missed, and John grabs him and squeezes him and refuses to let him go, because wizards, whatever, magic-users are a dime-a-dozen in Chicago these days, but someone who's a natural at accounting is priceless.