As drones become more popular, it is inevitable that accidents will happen. I recently managed to reverse my Inspire 1 into a tree and mashed the propellers as well as severering a smallish branch of the tree. Had that branch instead been a child it could have had dire consequences for all. My suggestion for added safety is that you add an emergency stop feature eg press both buttons simultaneously. When the Inspire is less than 2 meters above ground this should cut the power to the rotors immediately, not after 3 seconds as with the normal procedure. Such a feature would also enhace the marketability of the Inspire 1 in the same way as Volvo sell cars based on safety. Legislation is as usual way behind technology and the danger is that unless the industry takes a responsible attitude to how its products are used, it will become the target for both legislators and ambulance chasing lawyers, to the detriment of all serious droners.