So let me get this right: This post is about you being upset with the lack of airmanship and you end your post by saying you didn't give a damn about this guy and his helicopter and right next to this guy while his blade was still spinning? Oh, and don't get me wrong! He definitely lacked airmanship. But you didn't display much airmanship yourself.
B407, my thoughts exactly, although I was too chicken to say it when the OP's post first appeared. His "I decided not to wait any longer and to give a damn about his rotorhead. I backed up and flew away" said it all. I wonder how he would feel if he had caused a mast bumping event that went unnoticed and a subsequent flight caused separation and deaths.