I was driving my freshman to Paly because he had extra stuff to carry today and it was raining, he usually rides his bike. We were driving along Loma Verde and stopped at the 4 way stop sign at Cowper. It was our "turn to go", but an older male cyclist comes along Cowper with his hand raised to us indicating stop, I am crossing. He didn't slow down, let alone stop. His eye contact was constant and his attitude was arrogant. What made it worse although he couldn't have been aware of this, was that my teenager thought that this was a great idea and he should try it. I have had many discussions with him on how he should behave when riding his bike, pointing out that he is a vehicle and should obey all traffic rules. What he saw today undermines all that.
As a request to this cyclist and all adult cyclists, please remember that you are sharing the road with others, you must use traffic rules, and you are in a subtle way teaching younger cyclists how to use the road. If you deliberately flout these common road courtesies in front of younger road users, how will they learn the correct way to behave.