As the nights draw in and we reach the end of October, we will once again be able to enjoy that newly-imported pastime of ‘trick or treat’ which, at any other time of the year, would be more accurately termed ‘demanding money with menaces’. I know this instantly brands me as an old curmudgeon, desperately out of touch with the times, but I think it’s a shame that we seem to have embraced the U.S. version of Hallowe’en, with its practical jokes,...