This is Chance. He lives with a german shepherd collie mix, 2 beagles, and 3 cats. He has never hurt any of them. He has an issue when it comes to other dogs when we are out. He barks at them. He stars with a low growl, then changes to barking and trying to lunge towards them. I know that he is just protecting me. He was not socialized AT ALL with other dogs when he was a puppy. Up until about 6 months he never left my backyard. he had parvo at 7 weeks, and I wanted to keep him nice and safe for a while, but in that process, I sheltered him too much. What is the best way to teach him to be okay. i take him to petsmart and walk him there a lot and stuff, but should i risk taking him to the dog park?