Luca is almost 7 months old now and still has issues with being outside. He pulls on leash (collar and harness, we use either depending on where we are going) and whenever he sees anyone; stranger or familiar, he pulls with all his strength to get to them. Just to say hello of course. No aggresive ever. When his collar is on he will actually choke himself out or to the point of throwing up. I do the usual stop and wait thing. But ounce we start moving he lunges again. This was not addressed in his puppy class and adult class is still weeks away. Has anyone had any luck correcting this with thier bully?