Ignoring commands from others?
I was hoping you all might be able to chime in about training your GSD to only respond to your commands. I have thought about teaching another language, but it is a bit easier for my wife if it's in English. I have Ghost for the sole intention of personal protection when he's older (right now he's maybe 2-3 months). The main thing I do not want to happen is to have someone be able to control my dog, preferably the dog will only listen to myself and my wife.