Golfer Greg Norman, nicknamed the Great White Shark for his blond hair and aggressive play, is apparently urging a little caution after a run-in with a chainsaw: "Working with a chainsaw ALWAYS be respectful of the unexpected," he wrote in an Instagram post last night, beneath a photo of himself in a hospital bed. "I was one lucky man today. Damaged, but not down & out. Still have left hand." The 59-year-old's accident comes about a week after he posted a photo of himself holding a chainsaw, notes CNN, and proclaiming: "Time to trim the sea grapes today. Never ask someone to do something that you can do yourself. Love to work!" (More Greg Norman stories.)