I was in Kuching when a round "cooked off" in a Javelin whilst on Finals, cleared the runway [09, so straight to dispersal] fireman no1 runs under the wing with hosepipe, fireman no2 climbs onto wing to "help" the crew. Another round cooks off. Gun panel misses No1 by inches, but bins no2 off the wing, breaking his leg. This was late 1964/early 1965 I believe that the Javelin was a write off. [I was at 487 SU at the time]