Don't worry about the helmet, it's not your problem. As for "stopping", what you think of it depends on how you perceive laws should be taken. Are laws somethi

Don't worry about the helmet, it's not your problem. As for "stopping", what you think of it depends on how you perceive laws should be taken. Are laws something that should be enforced "to the letter" each and every time a violation is spotted? Or are they a matter of judgement for enforcement officers? In the vast majority of cases, they're a matter of judgement. This is why there is virtually NO RISK for me as a cyclist to proceed through a red light literally in front of police cars. There are good reasons for cyclists to NOT stop at every intersection. One big reason is, actually, safety. Car-bike accidents almost always happen at intersections. In many cases, it's best for cyclists to get through the intersection before the mass of cars starts moving again. This way they can get through the intersection, position themselves safely, and gain enough speed so as not be an annoyance on the other side of the intersection. Sure, the cyclist has to fully aware of cross-traffic and if they get smacked, it's their fault. But the sense of outrage that some motorists feel when cyclists proceed through an intersection before them is akin to a toddler-tantrum IMHO.