My 6 month old female, Anya, did something this morning that I have never seen before. This is my first GSD that I actually own. I grew up with them, but they were always my father's dogs. Anya is doing extremely well with all of her training, she sits, stays, come, leave it, drop it, everything. She also usually does very well on her walks, a few pulls here and there, but for a 6 month old her behavior is really off the charts. Prior to her turning 6 months old last week, I was walking her every morning for 1 1/2 miles, then she get training time at around noon for 30 to 45 minutes. Training can be anything from practicing new commands, "find the cookie", sit and stay when I get her deliberately excited first, some tricks and games. She then gets another walk for about 1 mile in the early evening. So once she turned 6 months (again last week), I increased her morning walk to 3 miles, about an hour. She was doing with it for the past 5 days or so. This morning though, when we crossed the street to do the "additional" 1 1/2 miles, she started body slamming into me! No running, just she didn't want to go that way, not even a little. She wasn't pulling before hand, but I have trained her not to pull, no barking, but she really doesn't bark much (unless someone knocks on the door when we are at home), she simply moved to in front of me, then jumped up, turned side ways, and slammed her body into me. It was like she was trying to push me back to go the other way. She did this like 6 or 7 times. Her paws never touched me, she was not playing! I am with this dog 24 hours a day, I know she wasn't playing. She was telling me "I don't want to do this way" and she meant it! She was so adamant, that I did turn around and just do the old route, which once I did that, she was perfectly fine again. I don't know what to make of it. Should I correct this if she ever does it again, or was she trying to warn me about something? Like I said, she never pulled, barked, growled, anything like that. She made a point not to hit me with her paws, so she wasn't simply "jumping up". Any thoughts?