"One thing I was surprised to discover is that pedestrians are almost as dangerous to the full-time cyclist as drivers are. Especially if you indulge in sidewalk riding."

If you ride on the sidewalk as a courier you're wasting time and shoudn't be hassling pedestrians.

On the other hand peds who step off kerbs without looking deserve to get hit. When silent electric cars become commonplace these people will soon be extinct. Modern Darwinianism.