My dog ,rusty, has started barking at strangers, again. He will go up them and bark his head off. Which scares people Because they think he is aggressive. I always tell him off for it, but he seems to be the same, any idea? He also gets quite agrgessive to my mother in laws older dog. Trying to bite him and attack him. Help! ALSO We have two dogs , him [rusty] and a four year old dog called louie. They seem to be very jealous of each other and constantly fighting for attention with us. When we call one dog, the other one comes. They play quite hard. They are fine on there own though. What should I do?