I have never found myself in the office alone during the Christmas season as the boss always makes sure there are at least two of us on duty, however, there have been many interesting challenges going on at this time of year.

A few years back it was Tux Racer. We picked one particular course ("Who said penguins can't fly") and tried to get Tux to the finish in the quickest time. I think I managed about 56 secs and the record was about 44 secs.