I was helping a newbie set up an e-powered Somethin' Extra. I made an assumption and you know what it did. He'd left the power on while he answered the phone. When I reversed the throttle channel (with the TX on!) I had to choose between my hand and my face. 42 stitches along my thumb and forefinger. If the prop had been 90 degrees from what it was I would probably have lost the use of my thumb. As it was I could see bone and tendons and the newbie barfed all over his shop floor (-:
Walt