First time poster, lots of questions, any help is very much appreciated
We have a 2.5 year old GSD, a 6 year old Boston Terrier, and 9 month old pitt mix, all spayed females. All 3 dogs get along great, and 2 older ones are left the run of the house all day when we go to work. They tend to play more on the rough side, but tails are always wagging and they always go back for more.
About 5 months ago, the GSD and BT were playing and all the sudden the GSD got aggressive, grabbed some neck fluff and tried to shake the BT. We figured the GSD got too excited and was just trying to play. Then tonight they all ran outside to bark at the dogs that live behind us and the GSD and BT got into it again. This time there was some blood. Not enough to warrant a trip to the vet, but enough to worry us about the stability of the GSD.
If you met our GSD on the street you would call her a wimp. Tail between her legs hiding behind me when we meet other dogs. She is fine with our pack of 3, but for some reason when she gets around other dogs she is very timid. The 2 times that she did get aggressive with the BT, they were back to licking each other and playing within minutes.
Does anyone have any advice, training methods, ideas? If you need more info, please ask as we would like to do all we can to help our GSD be the best she can be.