On September 15th, 1945, the avant-garde composer Anton von Webern stepped out of his home in Austria to have a cigarette. He began walking. As he approached a military police officer with the American occupying forces, he was ordered to stop. Webern, mistaking the officer's warning for an order to approach, continued to advance -- and was promptly shot and killed on the spot.
[Such was the intricacy of Von Webern's compositions that his entire oeuvre could be performed in a single evening.]