When a corporation offered one thousand frequent flier miles for every ten purchases of one of their foods, one man realized their cheapest product was individual cups of chocolate pudding. He bought more than twelve thousand. For $3,000 (US), he received gold status and a lifetime supply of air miles for himself and his family. He also donated the pudding to charity, which netted him an $800 tax write-off. Genius!

Jesus told a controversial parable about a cunning manager who, as he was being fired, reduced what debtors owed his master. The man knew he could rely on their help later…