Multi-rotors are like personal watercraft. A lot of objection due to nuisance factor. Just as with PWC's, the places to use multi-rotors will diminish not only because of their whiny, annoying sound (not all of us love them like we do(!)) but above that, the multi's introduce privacy concerns. Your flying obviously evoked a reaction to a perceived threat from your neighbor. These days I, myself, would be threatened by a neighbor whether I know them well, or not, that was sending up a drone. Even though the neighbor may be behaving for the most part, the threat is there that at some time they will invade my privacy. Zoop, up it goes on youtube, probably without me even knowing about it.