Here’s one for all you recruitment agency owners whose staff like to burn the midnight oil and never seem to want to go home. According to the Financial Times, South Korean firms have taken to locking workaholic staff out of the computer system during their compulsory two-week holiday. And why should they be so keen to turn up for work? Michael Breen, an authority on Korean society, explained: “What they are most scared of is that they are expendable; that if they go away for two weeks their colleagues realise they can do without them.” Funny, in the UK staff come back from holiday to an overflowing intray and none of their work done…