Xenologer: Thus far you have shown that you believe the person in the story shouldn't have been wearing a helmet because they were doing dumb things while riding their bike regards cars and pedestrians. All I can surmise from your attitude is that you think people shouldn't wear helmets because if they make a mistake while riding - they deserve to have crippling head trauma or die on the spot.
I hope that you never get a talk show that advocates bicycling. You'd set us back 50 years. You are one black-hearted person from where I sit.