Any one read Philip K Dick's Ubik?
They have mini drones, not much bigger then bumble bees, that follow people around spouting adverts.
If I recall correctly they also have built in AI so if you to try to swat them, they plead for their life.
In another of his books your front door lock is connected to the powers that be - so if you fall behind on your bills you can't get into your apartment.
Biting the hand that feeds IT
