In 1971, a curious incident took place in Lecco, Italy, when civic guards staged a mock battle for a local festival. Intended to entertain, the event surprisingly turned chaotic when makeshift cannons unexpectedly fired real cannonballs instead of harmless projectiles. Miraculously, no injuries occurred, resulting in relief and laughter among onlookers and participants. The event remains a humorous anecdote, demonstrating the unpredictability of live demonstrations and the fortunate prevention of harm.