Hi - I joined just to post this question because I really want to get the perspective of cyclists on this. I bike a lot as well but with this incident I was the dog-owning pedestrian.
Here's what happened:
I was walking my bulldog mix dog on a multi-use trail. My dog is young and gets excited by bikes coming toward us (facing us) but I can tell her to leave them alone and she'll be fine.
We were walking and a cyclist came by extremely fast (probably 20+ MPH) very, very close to my left. He didn't give any verbal warning and startled my dog, who pulled toward him really fast (all of this happened so fast). He hit the brakes and proceeded to yell at me. My dog didn't do him a bit of damage; I don't even think she made contact with the bike. Anyway, he was yelling at me and I told him that he should have given us warning so I could have shortened the leash. He rode off in a huff.
This has been bothering me all day, especially because another pedestrian who witnessed it (from pretty far away) started yelling at me that my dog had attacked him and should be put down because she's vicious. Obviously my dog didn't bite him or anything, she just jumped toward him because she was startled.
Anyway, I'd like to get cyclists' opinions on this. Obviously we're going to stay off that trail for a while - my dog was so freaked out after this happened that she started barking at other bikes which made for a long and miserable walk him.