Ha, that makes me wonder if we could have a future standardized protocol where your browser handles the responsibility of storing a signed package of data, and sending it back to the company when needed. Basically treat each package of data like a product that might need to be RMA'd if there's an issue. Obvious first question is what happens when you switch browsers/devices.
Regarding pets: it'll depend on the size of your pet. For most people, the sensors properly ignore pets, but they can be confused by large dogs. You can adjust the sensitivity of the sensor, so it's generally only an issue if you have both large dogs and small children, and only want to count one of them. We're working on a software update that should help that scenario too. Feel free to send me more questions at neil@hiome.com :)