Ahhh I've got the same prob with my 14 week old little one. She constantly tries to run on the leash, pulls and doesn't seem to enjoy walking. She has also started to growl at strangers. I have tried to socialise her as much as possible since the day we got her 3 and a half weeks ago. She gets so distracted with people walking by that most of the time we are not walking just stationary! Also she is so eager to get home the further we go away from home she tries to turn back and run in that direction. I have tried treats, practicing on the harness indoors...Did anyone else have this prob and how did you solve it? Is this because she is still little?