"Probably nobody is listening to me speak, but I won't be surprised if I'm overheard by people. Not a perfect analogy but eh." Which is fine, except the analog

"Probably nobody is listening to me speak, but I won't be surprised if I'm overheard by people. Not a perfect analogy but eh." Which is fine, except the analogy in this case is someone who is always sitting next to you and has access to all your conversational history - which may be public in isolation but private in aggregate.