Has anyone else had this type of problem? My husky mix is a therapy dog, generally very calm and reliable. When we run into a lab at the dog park or around the lake, he just goes berserk and tries to attack. I don't recall any episode where he felt threatened by a lab or retriever, but it is really a problem. I got him when he was about 11 weeks old. This issue developed about a year ago. He is 3 1/2 now. He is so strong and it's all I can do to keep him under control if we run into a lab or retriever. (Plus it makes me really sad and I feel bad for the other dogs and owners.) Any suggestions would be appreciated!