In days of yore one could fly to Hendon for a dirty weekend in the Smoke. On the Vampire the 29mm ammo boxes were ideal small suitcases and were used for this purpose.
One Friday a box was filled with togs and given to the armourers to mount in the aircraft. A slight mistake ensued and they went into the wrong one.
Whilst one hero was turning onto the flag with a trail of cuff links and shirt collars streaming through the air our other hero was lugging a load of 20 ammo on the Underground.