Sour I don't get the bit re:" with a dog leash behind my neck."
I think he just means the leash hanging from his neck? Kind of like you would throw it over your shoulder except he has it over the back of his neck instead? For when you don't have any free hands to hold it but still are able to always be ready to work the dogs?? At least I think that is what he meant or how I took it but maybe he can comment or correct me if I am wrong.