I stop at stop signs on my commute home from the train station when other traffic is present. Frequently I'll be stopped waiting for the car whose turn it is -when another biker flies up behind me and blows through the intersection sometimes forcing cars to slam on their brakes.

The sad part is it makes the rest of us look bad. Cars who have had to screech to a stop to avoid somebody else usually wave me on with a very obvious annoyance and animosity towards all bicyclists.