I've read on Thundershirt's website comments from people saying the same thing you did - their dog just kind of freezes or zones out when they put the thundershirt on. Clifford seems to like wearing it. He gets all wiggly & happy when I get it out. He is improving everyday with his separation anxiety. My neighbor who usually lets him out during the day is out of town, so my sister has been stopping in on her lunch time. She said today Clifford did not greet her at the door & she found him sleeping on my bed. When he saw her, she said he looked at her like "yeah, what do you want?" I'd give it more time with Maggie. I also read comments from people saying their dog improved over time.