I'm going to share a secret. I've been flying multirotors for a while now and having a lot of fun with them. A bit different for sure, easier than planes once you get used to them, and they have some interesting attributes. Once in a while I even put a camera on one to film objects or natural features but I don't ever film people without first obtaining permission or being asked to. I don't fly FPV. So I haven't backed up on my aversion to using our toys for surveillance. Cinematography and art, yea, but not using them as "watchers". So I'm curious, how many others are flying multirotors and what level of advancement have you achieved? What types and sizes? Flight controllers being used, etc. I promise not to bite anyone, and I won't even get sour if FPV is mentioned. But if you do fly FPV I'd sure like to hear about the safeties you utilize to assure that you don't run into anything or get so far away you won't make it back on a battery set. Tell us you're doing it right and about your set up. Heck, we may just end up with another forum if the responses demonstrate a significant interest. For the record, I've flown the little living room type quads and had small time fun in the house. I have a 3d Robotics quad using APM 2.6 and have put a few flights in on a Cinestar 800mm heavy lift rig using a DJI Naza M flight controller and a 3 axis gimbal. Tried working with a DJI A2 F.C. with terrible luck, but that's a story for another day.