Los Angeles, CA —Yesterday I got a gentle safety reminder as I began to pick up my Phantom 2 .   The props suddenly began spinning on their own.   I thought I turned of the battery and then the radio controller.   I’m somewhat hearing impaired and did not hear those telltale sounds that the battery power was not actually shut off.   As I reached for the drone the plastic propellers really spanked my fingers.   I felt pain but suffered no visible injury beyond a little redness that quickly disappeared.   Had I been using carbon fiber props I would have definitely needed stiches and a trip to the ER.   I was lucky my negligence did not cause what may have been termed a minor injury.   Through negligence, I nearly suffered the only kind of injury that the small multi-rotor drones ever inflict.   Thankfully in my case, my precious fingers and the props were none the worse for wear.   To date, the smaller under 55 lbs. multi-rotors h...