I need help, I have a 10 month old male GSD. Little history got him at 8 weeks old, got him in puppy classes at 12 weeks, very intelligent and loves to play. He wasn't socialized as much as she should of due to getting him in middle of winter, we have very harsh winters but we brought him everywherea we went, would bring him to local parks/trails, would bring him to pet smart etc, At around 7 months old he started showing signs of agression just by his posture but was able to bring him everywhere, in the car, walks etc. Now in the car everytime he sees someone walking or they are parked next to us and they get out of the car he goes bezerk, barking, growling, so bad he broke my rear view mirror, also now when we go walking, everytime we pass someone he tries to lunge at them. He goes to a off leash dog park 3 times a week, never showed sign of agression towards any dog or people? I need help, tonight he escaped out of the car and went after my dad, I called him and he ran back inside the car, he didn't have the chance to bite but i'm scared if I didn't intervene as quickly he would of. I got a trainer all she said is to let him do his fit and reward when calm, well I don't think it's sufficient enough, it's not improving at all.
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