Many of us have had the unpleasant task of meeting other parents to apologize for our child’s behavior. I can recall more than once dragging my son to a meeting with another child and his parents to make amends for throwing a ball or rock way too accurately and injuring someone. Fortunately, as he got older, we were able to channel his strong left arm to the baseball field.
Happily, none of my meetings turned out like the one in Yasmina Reza’s dark comedy “God of Carnage,” which quickly...