...How are they supposed to know their running style is what is upsetting her rather than just their presence? As a runner, I see some dogs that react to anything; unless I know the dog personally I don't know if they're upset that I'm wearing a certain color/piece of clothing or somehow my form bothers them.
I think that Greenpony makes a VERY valid point here. How can we expect runners and bikers (who may not even personally own dogs or ANY pets) to know what type of behavior sets our dogs off? REMEMBER, this thread was started because OTHER DOG OWNERS (who presumably SHOULD know better) are engaging in behavior detrimental to our dogs. THEY should know better (runners, walkers and bikers) - - maybe/maybe not.
One other thing about this particular thread that I find interesting is how selective we are (I said WE, not just THIS one or THAT one), about various transgressions and/or faux pas committed out in the "walking our dogs" world. Several of the comments offered detail encounters in "Off Leash" areas where BOTH the offenders and the offended are OFF LEASH! I AGREE with the posters that the thoughtless behavior of many owners is over the top. But, EVERYONE should follow the rules, not just those who do stuff WE don't like. (Obviously, "No leash required areas" change the discussion). If a leash is required by law, it is required for all. There is no dispensation for well trained dogs, while less well trained dogs are required to be restrained. It reminds me of an on going discussion from a Comparative Religion class I had as a 1st year undergraduate. The discussion was about "Which sins are the worst sins?" My belief (then and now) was "a sin is a sin". We can't pick and choose which rules apply to us and which do not.