Wow, thanks for all the replies. Some very practical advice, and some not so much. My wife and I haven't laughed that hard in ages.
On a serious note, we camp mostly in national parks, so while its not a major issue, we're sensitive to our neighbors sensibilities.
It's good to know that it's not a show stopper.
For what it's worth, we like having the kids in the same tent/van as us, so separate accomodation isn't really an option.