I think it's really dumb to listen to an iPod or any other entertainment device while waking around or jogging. It's the ideal distraction for potential victims of muggers besides making the wearers unaware of traffic and emergency vehicle sirens.
My wife and daughter jog between 5 and 6 am and are always on a high sense of alert. They can even smell a smoker or wino from a 100 feet or more away and any noise is noted. My wife also has her dog at her side. There is a doctors wife out at the same time wearing headphones oblivious to any sound. My wife has spoken to her several times about the hazard but she continues...