Today's Doofus is from Pennsylvania.
A Pennsylvania history buff who recreates firearms from old wars accidentally fired a 2-pound cannonball through the wall of his neighbor's home in Uniontown, Pa.
William Maser, 54, fired a cannonball Wednesday evening outside his home in Georges Township that ricocheted and hit a house 400 yards away. The cannonball, about two inches in diameter, smashed through a window and a wall before landing in a closet. Authorities said nobody was hurt.
State police charged Maser with reckless endangerment, criminal mischief and disorderly conduct.
There's more at the link.
Yep. Antique they may be, but muzzle-loading cannons killed an awful lot of people in their day.
They're quite capable of repeating that performance if handled carelessly. Thanks be to God, no-one was in the line of fire this time!