Vehicle accidents are one of the most dangerous aspects of modern life. Model vehicle accidents are usually a lot less dangerous, though there are a few cases of fatalities. Has a model vehicle ever directly damaged a real one? If so, which was the worst such incident?
Perhaps a model train or remote-control car could derail a train, but a collision between hobby aircraft (airplane, helicopter, or drone) and real aircraft seems more likely. Several experiments have sought to understand the damage airliners suffer in drone strikes, but a publicized case in Mexico was disproven; unless I am mistaken there have not yet not been any drone strikes on airplanes. I searched for some key phrases and only found mentions of collisions between pairs of model vehicles. Maybe someone else will have a better angle.