THERE'S grim news for people who worry that if something can go wrong, it will go wrong. A new mathematical formula has proved Murphy's Law really does strike at the worst possible time. Ordinary people have long known that computers crash on deadline and cars break down in emergencies, while previous studies have shown the law, also called Sod's Law, is not a myth and toast really does fall buttered side down. But now a panel of experts has provided the statistical rule for predicting the law of "anything that can go wrong, will go wrong" - or ((U+C+I) x...