Reminds me of a story that a friend who went to University in Tennessee used to tell...
He had driven his car down from Manitoba, and it still had a block heater cord on it. When the people from Tennessee would ask what the plug was for, he told them it was an electric car. I don't think he ever ran across anyone that didn't believe him!
I can also relate to the home for Christmas / Thanksgiving / etc comments. I went to University in the US, and believe me, Thanksgiving is the biggest holiday down there. People were aghast when I told them I wasn't going home for Thanksgiving.