LOL, we've been there, one time I'd spent the summer taking my dog on long walks to walk along the riverbank, and my parents came home from their holiday or something and they tried to take her on a walk. Tried because she only went some 4 or 5 blocks before freezing down and probably sitting down too on the sidewalk, and wouldn't walk on anymore for them. They came home and told me the dog was sick, couldn't walk, etc, etc. I looked at the dog, who was walking fine inside our house, and told them she just didn't want to walk with them. I continued taking her on long walks and she never froze down on me, mostly because I would have never let her get away with it. XD