> I'm a very law-abiding cyclist since witnessing a few horrible accidents, and yet I encounter situations with headphone-wearing pedestrians regularly. Often I'll ring my bell to no avail, until driving right up to them, and they still won't hear me. This is really frustrating; I'm definitely in the market for this.

I’m guessing some law (law-abiding) gives you the right to bother people who are using their own feet instead of wheels because you want to pass them and they should have to actively watch out for you and yield to you? Okay, that part is fine. But I don’t see how it is nice or, I dunno, ethical.

In my experience (in my locale) as a cyclist you either give pedestrians a wide enough berth, dismount so that you can pass them if it is crowded and there is no passage, or use the vehicular road.

I remember violating this one time when I belled someone that I wanted to pass on the sidewalk. But I was a child at the time. Even more self-centered than I am now.

These seeming rules for yielding to cyclists are worse than the laws and norms when cars interact with bicycles, by the way. At least where I am: cars never honk cyclists. They have to wait for them or find a window to pass them safely. They can’t honk them into the ditch or something.

I am aware that most countries do not have dedicated roads for cyclists, but that doesn't mean that cyclists should be using sidewalks. When I go out and walk on the sidewalk, I expect to be able to just walk safely without having to think about potential riders of bicycles or other things that people ride on sidewalks.

If just slowing down helps to prevent an accident, not sure what the bell would be good for - except for signaling your frustration to everyone around you