That always puzzled me about the military. We had our own little rule book for dangerous goods (JSP 335 ?), while the civvies have to struggle with the complexities of the ICAO technical instructions. So why does JSP 335 make it so hard for all concerned by requiring all passengers to package them as DAC, when they were designed to be worn inside an aircraft and it would appear that the majority of you pilots would be quite happy for them to fly wearing them. Yet we would allow a passenger to carry his bayonet/knife in his hand luggage (admittedly not anymore post 9/11). I was once summonsed to an arriving Tristar where a distraught Loadmaster explained one of my passengers had carved his initials in the arm of his seat - he claimed it was the RAF's fault for not letting him smoke !!!