Bismarck stumbled into the room, and Nourri slammed the door shut. The lead tenor of the Paris Opera House kicked the young Prussian in the back, knocking him to the floor.
Nourri raised his gun barrel to Bismarck's forehead and pressed, demanding: "Speak! What were you eavesdropping at the door for? Who sent you here?"
Facing the dark muzzle, Bismarck, flustered, was about to explain, but Nourri's slap instantly made the young, spirited lad feel his dignity was insulted, and he shouted, cursing: "A bunch of damned Italian rats, Germany is not a place for you lot to mess around! I, Otto von Bismarck, am not someone you can insult at will!"
Though it was just a curse, it showed that Bismarck was a brave and meticulous lad. To prevent the other party from understanding what he wanted to convey, he cursed in German, while his self-introduction was thoughtfully done in Italian.