Sometimes it might be wise not to let people know exactly what you do. As a warning, I was golfing with my father and group of people who have the same profession. I had been doing contract work with a Big Company as a report writer (yes, I know, but the money was really good). It so happens one of the reports was a customer facing document (receipt of sorts) and it was specified by people who dealt with other Big Companies and not regular customers. This caused said report to be pages long. The professionals in the golfing group all had dealings with Big Company and had received many pages worth of this report. My Dad mentioned, by way of explanation on what his oldest kid did, that I had contracted to Big Company and had written said report.

...errr...

I found out, for the next 13 holes, how much they disliked said report with detailed explanations. I was no longer contracting with Big Company, so no feedback was passed on. Dad now understands why I give a very short non-specific answer.