Theres a bit of provinence with this and the Walkman, I recieved both (and a third which I use myself) as safety prizes when I was working in Canada. First one was for catching a fella who fell off the structure, second was for dis-arming a knife wielding mad-man and the third was for being a generally top-bloke.
I probably shouldn't be getting rid of them but I really have no use for them and if they ly too long then their obselete.