Whoa!
"A 19-year-old man playing with a remote control helicopter in Brooklyn lost control of it while trying to perform a trick, sliced off the top of his own head and died Thursday afternoon, law enforcement officials said."
"Pirozek also sheared off part of his shoulder, officials said. He was instantly killed."
(
http://www.nbcnewyork.com/news/local...222576101.html)