Old joke: an interview program has a standard question they ask everyone, "If you were going to be stranded on a desert island and could only bring one thing wi

Old joke: an interview program has a standard question they ask everyone, "If you were going to be stranded on a desert island and could only bring one thing with you, what would it be?" One day they're interviewing a network engineer, who says "I'd bring a piece of fiber optic cable. I'll bury it in the sand, wait a bit, and then when the bulldozer comes along and breaks it, I'll ask the man in the bulldozer how to get off the island."