I know I've seen information on this site in the past about dog trainers. Does anyone have a good trainer for aggressiveness? She is a small 4-5 year old pit mix. She's great with the family, but is unpredictable with strangers. She also lunges at cars, fence fights, and barks and lunges at strange dogs. This dog is a rescue. I've had her for a year. I really think she is improving, but not where she needs to be. I've had a lot of dogs in my life, but I really don't know how to help her.