UK students protesting the university fee hike attacked the Rolls Royce Phantom VI carrying Prince Charles and his wife Camilla, who was in a state of shock. The protesters threw paint at the car, and smashed the rear window.
Towards the end of the video, someone started to chant "Off with their heads! Off with their heads!"
Well, the last time a royal lost his head was in 1649, when Charles I was executed.