When a Canadian construction team came across a giant cannonball as they excavated a building site in Quebec, they did what anyone else would do in this age of Snapchat and Instagram.

They moved the 200lb projectile into better view and posed with it for photographs.

It was only later, when an archaeologist was studying the missile, the workers learned of their lucky escape: The cannonball was still live, packed with a charge and gunpowder just as it would have been when fired by British gunners during the Battle of the Plains of Abraham in 1759.