Similar to Mogwi's tale, right down to the peat bog - Chinooks carrying out tasking with the then-new MAWS on auto-flare-fire, when repositioning Golf towers (think 7-tonne metal boxes atop 50-80ft tall Meccano..) in S Armaghhh were prone to fire off a standard array (24? memory fails me) whenever some stray UV source such as, say, reflected rays from the nearest star were detected. As the troops securing the site weren't too keen on being doused with extremely-hot burning metal, and as the sound of the flares going off was remarkably similar to gunfire, it was considered appropriate to change the SOP to disarming the system while in the hover.