I'm soon to get my hands on a H and so many here have accidentally switched into the safe mode on startup resulting in the H getting out of the area of the operator, it's a mistake at some point I am likely to make before or during a take off. When the operator is within the circle of death - instead of allowing the H to take off - there should be a warning on the controller to say the two are too close to each other...and for the operator to move outside of this circle and importantly NOT allow a takeoff until the operator moves. This 26ft of what ever it is should also be adjustable and allow the operator to decide min and max distances. Today it's walls and trees it fly's on its into. Tomorrow it will be something of more consequence. By the way, has anyone come across changeable lenses for this camera similar to how you can change the lens on a go pro?