What happens if it loses all power or has a complete electronics failure as it's over a crowded space?Yes you are right. These things aren't as dangerous as people that have never flown one think. It is flown via computer and GPS. if it loses its signal it returns to where it took off from. If you pull the stick left it flawlessly flies left. If you take the controller and smash it on the ground the drone hovers in place and returns to where it took off. If the power gets low it signals an alarm and will return to the takeoff point. I had absolutely no remote flying craft training when I got mine and yet I immediately flew it all over the place. You really have to be stupid to crash one.