"I must admit that the concept of an MP3 player that also sports a knife, (or vice versa if you prefer), is something of a worry, especially in today's climate with a spate of stabbings being reported recently in the news. This player should not be given to children and should always be used responsibly. Of course an MP3 player with a knife attached presents something of problem if you want to use it on a plane, unless you enjoy spending the whole flight on your own in the hold. SwissBit has thought of this and the MP3 player can easily be removed from the housing that contains the exceedingly sharp knife. Alternatively, you can but a tool-less version of the player, without the knife."I'm a big fan of Swiss Army knives as well as MP3 players, but in no way would I want them in the same package. My knives get wet and dirty, are are subject to shock on a regular basis. None of these things are good for MP3 players. Anybody out there have one of these? If so, please enlighten me, why is this a useful combination?