Trevor's New Year's Eve party was an annual occurrence with numerous guests arriving. During the evening, a man knocked on the door, was greeted heartily although no one knew who he was, and was led to where the drinks were, in the kitchen. He sat there happily, chatting away, for a couple of hours before a strange light dawned on his face.
"You know," he confided to Trevor, "I wasn't even invited to this party. I just came over to tell you that some of your guests' cars are blocking my drive."
He continued, "My wife's been sitting out in the car waiting for me to get them moved, so that we can go out."