One of the most common accident modes is right-turn-on-red. The first car will stop (or not), creep forward, etc. If they see an opening -- or think they seen a

One of the most common accident modes is right-turn-on-red. The first car will stop (or not), creep forward, etc. If they see an opening -- or think they seen an opening -- they'll let off the brakes and begin to roll under idle power or even accelerate slightly. Of course, this is the cue that they're making a right on red, so the 2nd car in line will also accelerate and at the same time look to the left for oncoming traffic. And BAM, you rearend the car in front of you because you only thought it was pulling out. It's the perfect storm of misreading the situation, and the situation demanding that you look somewhere other than where you're going.