Do you want a pet that won't pee on the baseboards or make a mess on the carpet? Do you want a pet that doesn't eat anything except batteries? Well, I have one for you. How about a flying drone that follows you around like a puppy? Actually, in the future, these autonomous flying drones have some promise as butlers, security devices, athlete tracking and measuring devices, and, if you give them weapons, police functions. If that scares you, good. All the bad scifi movies you have seen, in which autonomous robots have run amuck, are about to become a part of your reality. Oh joy. Oh happy day.