Henry is about eighteen weeks old and goes everywhere with me. We have been to the pet store many times, hiking, and the park. Today it was grey and very windy and Henry seemed uncomfortable going outside. I decided to take him to the park for a walk to make it a positive day for him. He did pretty well. Stop and go, the Doberman stop and stare (so to speak) to others passing by, but ultimately he would start going again when anyone passed. However, at one point, a strange man stopped to compliment Henry to me. Henry did his usual stop and stare, but when the man went to pet him, Henry just started trembling. I had the man try and give Henry a treat, but Henry refused. Henry is a fearful pup and I have been working very hard on socializing him. I want Henry to be comfortable in public with me. He is a very loving puppy normally. I do have an older dog that at times avoids him, but today he and my older dog played together for quite I while. Any advice from the more experienced Doberman owners here would be greatly appreciated. I have a dog sitter, a trained dog trainer, come and visit the dogs every day when I am at work. Thanks.