What everyone has said on here!
I work away from my home town, because it is a very small town, I'm in a professional job normally, have a gossipy boyfriend who tells everyone ANYTHING (that is a right pain in the arse) and the risk of being outed is very high. If it got back to my normal job what I was doing, it would be immediate dismissal (reputation).
To reiterate though, don't tell ANYONE. When doing photos for your AW profile, don't use anything that can be identifiable e.g. wallpapers, even furniture that people may recognise. HUGE mistake I made a while ago when attempting to go indie (and failing miserably) was to do this... my ex was snooping on AW and saw the pictures of my bedroom then outed me to my family, who nearly made me homeless. They don't know I am doing it now. Face pics blurred, don't identify yourself in any private videos- you never know who's viewing them! Don't flash the cash (nearly let that one out recently when I decided to treat myself to a new designer bag. I had several comments in my normal job about me and my 'disposable income' I just made an excuse that I had been doing overtime, which I had, thankfully).
I don't want to take this away from the OP's original thread, but I found this question very useful and interesting. I work away from home but due to above commitments, can only tour for a few days every month. I have my location on AW set as the place I tour, but recently, clients keep bombarding me with 'Why can't I see you on such a day?' I obviously don't want to say that I don't live in the place I tour, but I am wary of putting my hometown down as a location. Is this a bad idea? Just going back to the OP's original post of managing to successfully keep this a secret!