Thank you to all those who understood what I was trying to say in my OP. I really appreciate it

I've learned a couple lessons from this thread. One, always follow my instincts. If I have even a shred of doubt that what I say will not be taken out of context, word it differently.

Two, have an audible warning device other than my voice available to me when I ride my hybrid or road bike. Like people here and in other forums have said, people don't always hear things like "on your left" correctly, resulting in possible dangerous situations when passing. Those two bikes were the only ones in my fleet that didn't have bells. I dug around in my parts bin and found an extra Incredibell Brass Solo, which has a very nice tone compared to other small bells. Here it is on the hybrid (click to enlarge):



I had to buy one for the road bike. The only small, lightweight one I could find that will fit the 1 1/4" diameter bars is the Incredibell Adjustabell:



I'm not going to ring my bell on every pass. Like I said before, it depends on the situation. But there have been times I've been on my road bike and wished I had one.

I also use a Take-A-Look mirror. I wouldn't ride without it.