Welcome to my world! Even obedience classes haven't helped. We do use the halti, it's the only thing that helps a bit. She goes insane when she sees another dog, and we've tried the sit, treat, or walking fast past the dog, or walking in the other direction...... I'll be taking her back to obedience regularly (they let you come back free as often as you need). And Mika is STRONG--she's pulled me over before! She loves to socialise with dogs at the park, as long as it's off a leash!