At the same time saying : "don't do that then" isn't necessarily a good defense. I work in automation making stuff move that can easily kill. We can't just say to operators : "don't cross the yellow line", we must actively guard that they don't cross the line (and guard the guard as well). And if they still do cross the line despite being told not to, it is our fault if that harms them. Obviously there is a balance. You can't guard against everything. But at some point, some regulator is going to say : "but you could guard against this kind of misuse of your design". And if that happens after a major accident, it's too late. I am hoping Tesla is working on using the interior camera on the Model 3 as a high priority to help customers use Autopilot responsibly. That would be a major step forward.