What are you so really pissed about that you would physically attack a Royal or Head of State?

Apparently protesters in London are so riled up, one “yob” managed to poke Camilla with a stick through an open window of the Royal Rolls Royce. I get my undies in a bunch over the lousy job our country does spending our tax money but not sure I would attack our Governor or President over it. Maybe throw a creme pie. But things are pretty grim and people are starting to get impatient with our world leaders. So do any jellies have things so tightly wound up that given the chance you would poke your leader with a stick and if so what for??