Sorry Skel - Most people we hang out with are either co-workers or residents of the town both Rob and I work for. And people always want to know what is happening with X project, or whatever. its the fallacy of being couples as well as colleagues. both my parents were teachers and we got the same thing. in fact, the only people i know that don't really like to talk about their work are accoutants.
The majority of my closest friends, including my betrothed, are planners. Some of them live in different states and some of them work for competing firms or are still working for the city/govt. In order words, not talking about work is almost impolite, although we all have enough separate interests to keep our converstations planning-topic free.
I don't try to do it, but sometimes I'll be introduced to someone in a social setting, and when they find out what I do, they'll ask, "Hey, were you involved with....?" (usually a controversial rezone).
My son is so used to hearing about work at home: when I was in zoning, he would ask quite frequently "So, mom, what jerks did you have to deal with in the office today?"
We try to only talk about work when we both get home, after that we don't really talk about it. If people ask me about a case or want to talk about my job while I'm out socailly I tell them I try not to mix the two, but if they'd like to call me at my office I'd be more than happy to talk then.