There are Arret (stop) signs outside the Bistro where I take my morning coffee. One day I decided to count how many cars stopped for the sign. I gave up counting after 62 cars went through without coming to a full stop. It is a difference of perception. A car that slows from 30 mph to 3 mph looks like it is stopping, while a bike that slows from 10 mph to 3 mph looks like it is blowing through the stop sign.