I've only ever had one job, and it was working in an office. I was a filing clerk at an ambulance company. There were only five of us (myself included) working there. Our office building was connected to the EMT's headquarters, but we rarely ever saw them. And when they did come into the office, they were usually very friendly. We weren't obligated to talk to them, though. We would hardly ever have any "customers" come in, because most of our people interaction for business was done over the phone. My position, however, didn't involve talking on the phone to patients. It was actually really nice. The office was quiet and peaceful and I was even allowed to read my books on the job because I'd have to sit there for probably a good hour to an hour and a half, waiting for my faxes to finish.
I was very lucky to land this job. Sadly, they ended up having a 40% decrease in their income and workload, and I was laid off. My therapist told me the other day that this other medical office (they aren't an ambulance company, but they sell medical supplies and have a lot of the same work that my old job does) has an opening right now and she wants me to apply for it. I don't have a car or really any reliable way into town, so not only would it be difficult for me to get down there to just get an application, but how the hell do I get to work every day? Eh..I'm just rambling. Sorry. I'm just debating on whether or not to apply, if I can.
Anyway, my point is that maybe a little desk/office job would be okay for someone with SA. Depending on the person, of course, and what their limits are.