> reveals at least when you left and returned to the house. Sure, the neighbors' cloud-connected doorcams reveal that too. Although I do enable airplane mode h

> reveals at least when you left and returned to the house. Sure, the neighbors' cloud-connected doorcams reveal that too. Although I do enable airplane mode here and there while I'm still at my house whenever I don't want to be disturbed for a couple of hours, and I don't always remember to disable airplane mode the instant I walk through my front door, so that's not terribly clean signal for "he left the house at this time and returned at that."