I absolutely hate when bikes fly past me on the sidewalk. You can rarely hear them coming (I don't wear headphones or anything), and they'll zip by with enough

I absolutely hate when bikes fly past me on the sidewalk. You can rarely hear them coming (I don't wear headphones or anything), and they'll zip by with enough speed to cause serious harm. What if I had stepped to the side? Or done a stretch and moved my arm to the side? I'm not trying to be in physical therapy for a year or more because you can't walk your bike from the nearest corner to wherever you intend to park it.