Always check your ammo? Try the chamber
Some cannon just refuse to believe the war is over. Take for example this cannon sitting in a shed in New York’s Central Park, said to originate aboard the H.M.S. Hussar during the American Revolutionary War.
My amateur opinion is that a few hundred years of rust and the effects of New York humidity on the gunpowder probably neutralized this threat a few years back. But what do I know.
The article says it was last fired over 200 years ago, so either the journalist’s math was off by a century, or some 19C gunner screwed up.