A hole near the master bedroom window of a home in Dublin, California, marks the exit point of an errant cannonball fired during a filming of an episode of the Discovery Channel’s “Mythbusters”. Sheriff’s deputies are still measuring how, exactly, the cannonball flew from a bomb range in the rolling hills flanking a suburban San Francisco Bay area neighbourhood and rocketed into the front door of a home and through its master bedroom before landing in a neighbour’s parked minivan. Picture: Ben Margot/AP