hoping to find you here...  question:  why don't bikers say " on your left" or whatever. i'd say 1 out of 20 riders...in amazon park.  my dogs are trained to walk to heel so they're not pulling and all over.. yet we've almost gotten run down twice and here's the deal. i am a momma hen - don't mess with my chicks. should one of those bikers hit any one of my dogs? my initial reaction would be to rip the rider off their bike, if still mounted and then use the bike to pin them down until police get there,  and god help the rider who tries to get up and away.
    but why no warning? it's past rude.  it's as bad  and dangerous as cars turning into or  in front of bikes...