I was driving about 45MPH in broad daylight yesterday in middle of the city, when two fawns jumped out right in front of me. There was oncoming traffic from the other direction--so I could not swerve into the adjacent lane. I braked hard and just barely grazed the second deer. I only know this because I heard the strike--fortunately and surprisingly there was no visible damage to the vehicle. My question is, should I not have expected any alert from my Model S? I was not using auto-pilot at the time (I have AP 1 if that matters). However, I was under the belief--perhaps incorrectly, that it was designed to warn you or even brake if a "pedestrian" were to come into your immediate path. Is this not correct?