It may just have been too much too soon for reactive Sophie.
Has your trainer been a big help? If you need help in finding a new trainer, let me know and maybe I can help. Reactivity is a common behavioral problem.
My guy is only reactive at other dogs while ON LEASH outside. Throwing a tantrum is NOT going to get him what he wants but quite the opposite!
Yesterday was my first class and it was all very, very interesting. The trainer had their dogs in the room facing away from the entrance and each dog owner took a turn coming in with their dog to be evaluated.
Some interesting observations were found with the dogs....whale eye, tongue flicks, not looking at the owner, cutting the owner off while walking, erect tails, raised hackles and the list goes on.
Some of the the dogs were resource guarding their owners so that was interesting to watch and what a dogs body language is when it does that. I was told my guy was anxious and bossy.
I was told to keep a journal until next class of the dog's daily activities, what he reacts to, etc etc. And for now to only take short walks but as many as I want. They must be calm and quiet when the leash comes out, the door opens or whatever may trigger your dog to get excited for the walk. I was told to walk slowly, with the dog at a heel and to feed meals(a few kibbles at a time) while out on walks. Basically each walk is a 15 minute training session.
Anyways, there's so much I could write here but if you need help I can talk to my trainers to see if there's anyone they could recommend in your area. These women know their stuff, use positive methods and have connections to the top behaviouralist s like Ian Dunbar.
What I've found out about my situation is the reactivity is only the symptom and I'm hoping once I really crack down on the bossiness here at home will I have a dog that has a high frustration tolerance and I really think that is key!!! Right now Bosco has lost all privileges(he didn't have many to begin with) but the major thing with him was that he pesters when he wants me to get up in the morning, when he wants to go for a walk and when he wants to eat.