Hanging, what a wonderful tool of murdering someone silently. Quick, easy, and the victim cannot even scream for help if it was done by surprise. If the carotids are cut off, your brain good to sleep in seconds and your body will soon shut down after minutes of oxygen deprivation. If you were asleep and someone cut off your carotids, you won't even have any time to react. By the time you realize what's happening, you're going unconscious.