They're already spying on you and me. (Well on you, at most, since I don't use their product.) If you don't want to be spied on, try not to use the product made specifically to spy on you.

But since it is a given (and well-known; they even say so themselves, though not using these words) that they spy on you, if, while spying on you, they see that you're planning to, and again I stress this, shoot up a school they have an obligation to warn of the upcoming slaughter.