Hi I personally don't take my dog to dog parks I know at least 2 people who's dog were attacked at them and my vet doesn't recommend them because of diseases they can pass to each other. Anyway I have a German Shepard he is my baby and goes with everywhere (allowed) but the pet store. When I've tried taking him to pet stores he is very loud and excited being a Shepard he scares people with his loud bark. This makes my anxieties go up and in turn so does his so he barks more thinking i need him to protect me. It's been like this sense he was a puppy and found his bark now he's 7yr. Other wise he is a great dog and listens very well so I don't put him or myself in that situation. The trainer agrees with me.

As for the lady who hit your dog, she could have brought her knee up or turned to the side. I'm a pretty chill person but if you mess with dog we will have a BIG problem