THE beginner stuck grimly to his task, sending clumps of shamrock-laden earth flying in all directions with every desperate swipe at the ball. "This is so embarrassing," he said red-faced. "The worms will think there's an earthquake." To which his razorsharp caddie piped up: "I don't know about that, sir. The worms around here are very clever. Right now, I'll bet they're all hiding safely underneath your ball."