Most of us, I am certianly no exception, have done similar things. These are dangerous pieces of equipment. After 23 years I have learned a routine I go through before every flight, but still I manage to get distracted at times and do something stupid.

I've made a few trips to the ER from R/C related accidents. The worst was from a Concept 30 main rotor blade that was thrown and got stuck in my thigh all the way to the femur bone. For some reason I jumped up a bit or it could've and probably would've been my groin that got hit. I no longer hover close to myself except to check blade tracking, course that has to be done and at eye level.