This thread just gave me a great idea! I find that often while travling I pull into a park wanting nothing more than to halfway set up, eat supper, look at tomorrows maps and hit the hay.
Many is the time I have been met and greeted by the friendly neighbor,probably a great guy,but right now I just don't want to be bothered.
How about a major public altercation with the Missus, we could set the tone for 5 or 6 minutes and then retire to peaceful solitude.