A junglie pilot got hold of a 66mm LAW, to which yeovilton workshops kindly added a brass thread and bolt to the rear end with a small hole in the centre of the bolt.
Remove bolt, place fuse of crow scarer through small hole and tighten bolt with crow scarer in tube. Add tennis ball at other end, extend LAW, sights pop up and fire away!
Picture the scene at a Taranto Night with the cannon maskred in situ under the table due to a ban on Mess Cannons at the event. Fire first round at cardboard ships and cue the Commander of HMS Heron to stand on top table and make his way to the offender just as he says, 'fire me up Nobby!'. Priceless.
Offender ordered to leave mess, no resulting disciplinary action as the cannon way mysteriously stolen overnight......