You guys do have a valid point... The first rider should have either waited or passed on the left as I did. But I have had similar situations in the past where larger vehicles veer to the right into shoulders/bike lanes just as I am passing them, and there really is no way to predict this. Also, the purpose of the horn is not to get mad at drivers or tell them they did something wrong; it's to alert them to your presence. Some drivers may misinterpret this, but that's their problem.

Anyway, this is all getting "overthunk" as usual. My point is that drivers don't hear little weenie bells, so don't bother trying.