https://www.amazon.com/Parrot-Airbo...209999&sr=8-4&keywords=parrot+minidrone+cargo I tried my nephew mini-drone inside my room and it's quite interesting.. it can hover in mid air and you can really navigate it. Some questions. 1. Sometimes there are flying cockroaches in my room. Can the minidrones propellers kill them when they come in contact with them? I may buy one for this application. 2. What happens if a toy mini drone come in contact with the in take inlets of turbojets like the 747 during take off or landing, can it shut down or damage the engine? I heard birds can do that.. how many birds minimum before a turbojet in take manifold gets destroyed?