If you know somebody who regularly commutes using a bicycle or scooter, and they blow through intersections like no tomorrow completely disregarding stop signs, yield signs, and other various traffic signs, and then get an attitude when other cars honk at them and get mad because they almost pancake them, they're probably not a good person. Just because you ride a scooter or a bicycle and you are helping save the planet does not mean that you are not liable to get absolutely pancaked by a sedan or SUV.