Hi. I'm really out of my depth but just wanted to let you know I had problems with a GSD. I spent a fortune on 1 to 1 training and had a Behavourist to the home. He was extremely qualified with GSDs and in the end advised me to re-home her which I very relunctantly did
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I thought this man was fabulous and had great respect for him - I even recommended him to friends. I've since found out his methods are now out-dated - dominance - and feel sick. I miss my girl so much and although I found her a fabulous new home, I feel I've let her down. I'll never know whether something different could've been done to calm her behaviour. I want her back and there's nothing I can do about it.
Beware, I'm not saying your Behavourist isn't good, but don't always accept what an "expert" tells you.