Black comedy is often the riskiest of all comedies, because it requires good balance between darkness and humour, which is a skill that few authors can master it. Even playwrights and film makers who made their name with black comedies can at times miss that balance. Neil LaBute did it with his 2000 film *Nurse Betty*. The protagonist, played by Renée Zellweger, is Betty Sizemore, waitress from Kansas City whose lif…







