You make an excellent point, however as I've been recently up to my hips in RNNs I wonder if we can figure out how to score encounters, can the car learn the level of malice to expect, can it learn it to the level of perhaps the individual driver shifts? My daughter took the 54 to DeAnza community college and learned which drivers were ok, which were mean, and which were indifferent. Would regular exposure of the car to the bus at different times of day allow it to figure that out? Can we start with an expected level of malice and tune it? Fun question to think about.