&quot;always assume that buses are out to get them and avoid them at all cost&quot;<p>This is a case where perhaps the computers have too much imagination. We actually tell human drivers to drive that way, but as humans we all know that we don&#x27;t really mean that we need to worry about someone driving in front of us suddenly slamming their brakes, drifting 180 degrees, and driving at us full speed. Tell a computer to assume too much malice and the car will refuse to even move, because it&#x27;s pretty easy to specify the search algorithm that will find that outcome.<p>We have to specify the <i>exact</i> level of malice the computer can reasonably expect, which is way harder. And it will still, by necessity, at times be an underestimate.