I'm by no means anywhere near an expert in dog energy...but I've read a couple of books recently and I was out working at a vacant house when the neighbors dog ran over barking aggresively...I stayed calm and relaxed....said in my head "im not here to harm you, but this is my area"....I walked right past the dog as he was barking and even bumped into him while he was in my way. After that, he followed me around happy as could be be. Glad I didn't decide to shoot and kill him.