I had a similiar experience that was a good lesson to me,i had my plane in the front yard,turned the tx and plane on and had just primed the engine,i was kinda excited and all so i put the glow starter on and as i was getting ready to flip the prop i hurridly glanced around and noticed the tx throttle stick was still at full throttle,if i had flipped the prop it would have eaten me cuz i didn't have it tied down and that 3 blade 12X4 was lookin for something or somebody,a lesson i still remember but i was lucky.