I took chloe to the dog park today, it is separated between large and small, so we go to small side. Things were fine until a jack russell mix boy came-he , barred teeth, Chloe ran behind my legs, then sat down to me on the bench, she was very friendly to all the people. I probably did not help but I was nervous since seemed showed her teeth back. I could tell that she would want to play but when this dog came by she changed her mind. The owner's brother in law said that their dog has to run his energy, barks at everyone, but then calms down. Chloe seemed too nervous, so I just left. I think I may need to go back tomorrow though I do not want her to be vary of something she really liked.