There is a difference between a passing rider being "sociable" and saying "on your left," "passing," or ringing a bell.
You originally stated they should be sociable. Now you are changing your story to a safety factor. I agree with you on the safety warning, I don't see why they have to be sociable, although I appreciate it when they are.
I wave at approaching bicyclists. If they don't respond, I figure it is their loss, and don't worry about it. YMMV
Last edited by DnvrFox; 07-18-11 at 05:07 PM.