We have just reached the end of the annual marking season (grading for North Americans). The verbal joust of examinations is almost over. Students get their blows in first; teachers’ strike back with marks and comments. It’s a familiar ritual with its own rhythm and reasoning. It can be viewed as arduous by both sides…

Professions (and hence professionals) are both blessed and cursed with high expectations. The upside is clear: the public expects high standards, expertise and care, and in return is prepared to pay handsomely. The downside typically involves disciplinary sanctions against those not measuring up to those standards, although issues of probity rather than competence tend to…