Hi all, just wondering if anyone had experienced the same thing and if this kind of reaction is normal? Everytime I take my puppy to the dog park and he passes by other dogs who bark at him, he begins to tremble, twitch at the eyes, and salivate ALOT! Salivating so much to the point that there are strings of saliva hanging from his mouth that are touching the ground. The same thing happened this morning as I was taking him for a walk down the street, a maltese started barking quite aggressively at him. He started salivating and then even vommitted!! :/