Just in case any Scrooge-like feelings come creeping in this Christmas, I know I’ll be cheered up by my recent discovery that “While shepherds watched their flocks by night” (most irredeemably boring of all 19th century Yuletide dirges) can be sung to the tune of “Supercalifragilisticexpialidocious” from Mary Poppins.

I doubt I will hear it sung this way, but just knowing it exists will bring me no end of festive cheer. The only thing that could make it even better would be if it could be sung by a chorus of dancing penguins.