Every once in a while when I encouter someone walking a dog and I back off a bit, they respond by telling me "he's very friendly!" Yes, I suspected that, that's what I'm afraid of. I'm backing off to let you pass because I don't want a dog climbing my leg, and you as a dog owner probably can't even imagine that. What they should say to put me at ease is "he/she is very standoffish! Don't worry, he/she doesn't want to slobber on you or climb you." I would prefer knowing that it's an unfriendly (though nonviolent) dog.