Today I was dropping my brother off at his school. There's a signal right next to the school; you have to take a right turn at the signal to reach the gates.
Anyways, I saw the signal turn from green to red about 200 feet away, so I just put the car into neutral. There was a car tailgating me for the past 1 km, without overtaking. Obviously, he got impatient, and bombarded me with high beams. I was already going 30 km/h in a school zone, so I just kept on coasting. He got angry, flooring his pedal to overtake me from the left while glaring at me. He suddenly saw that the light was red, and slammed on his brakes to avoid a collision.
So, he just risked his safety and wasted his fuel, without saving a single second in the process.
As I posted before: use Anticipatory Focus. Look far ahead instead of the car immediately in front of you. Not only does it save fuel, it also gives you a large margin of safety. Its specially important when cars here rarely have airbags.