Oh, I get it. Far away from the basket, not even in the direction of the basket, two foot tall grass. Sounds like my very first game. Fairway hooked left, to the right was a wide open field. I go to throw, and end up going like 200 feet to the right, in the complete wrong direction. I proceeded to spend the next half hour searching that 2 foot grass for the disc. The bottom line is that if it is ground, there is potential for feet to walk upon it - period.
First, the dog would not has to venture more than 15 feet to scare someone. Would you be less scared of the tiger if it was next to someone? Not likely. And if the dog is always within 15 feet, then why is it so hard to clean up her poop? You're right there anyway, so pick it up.
Because like I've been saying from the start, it's not about how well I know the dog will behave, it's about considering the feelings of anyone I may run into who does NOT know how behaved the dog is. I run into someone who's terrified of dogs, my saying "it's ok, he's a good dog" is not likely to make them feel better. Seeing them on a leash will.
This is why I'm glad there's leash laws where I live. Nobody can try to justify why their dog is different.