TV providers that charge based on how many people are in your living room.
Peeping Tom spy devices that tell you when your neighbour is in the bathroom (upgrade to Pro to increase the resolution and find out what they’re doing)
Anti-alibi logs that prove whether you were or weren’t alone at any given place or time.
Industry certification schemes promising to turn this feature off but totally leaving the door open to anyone with a warrant who wishes to turn it back on.