Some years ago, as the year was ending, a pilot came up with the idea of celebrating the New Year by towing a banner displaying the year behind his aeroplane.
Keen to get to the New Year's Eve festivities he quickly painted the banner and left it over night to dry. The following day he attached the banner to the plane, but when he took off and the banner unfurled he noticed that he had actually hung the banner upside down. However, it wasn't a problem as the banner still read the correct year. So on December 31st he set to work.