Poppy has always, since she came to us, had a tendency to lunge at and growl at other dogs if she and they are on lead and pass each other even on opposite sides of the street. Since I've been limiting her to lead walks after her spay last Wednesday it's come really to the fore and needs dealing with before it becomes a big deeply engrained problem. Today I started to address this by making her sit when we saw a dog on lead coming, putting myself between her and the dog and making her look at me and treating as she did it until the other dog had passed. It seemed to work but are there any other strategies that I can have a look at do you know? I think the ideal would be to find a few stooges to set up scenarios with and do a few passes gradually reducing the separation.