We didn't buy our thundershirt for "thunderstorms". We read that the shirt was supposed to help ALL anxiety problems. We have a two-year old Lab/Golden Retriever mix. We love him to death, but since the day we got him (he was ten weeks old)he got very anxious whenever we had to leave him alone or take him for a drive. We recorded him on our webcam whenever we left. We would leave him kongs of frozen canned dog food or peanut butter, or any type of food that would take him a while to finish off. Once the food was eaten and he realized he was alone, he would start to pant, start crying, then start howling up toward the ceiling, calling for us. The crate just wouldn't work. We made it his "happy place" by putting toys and food in it. He happily goes into the crate to rest when we are home, but as soon as we left, he would howl, bark, and try to break out of the crate. What we did then was put a gate up and left him in the kitchen so that he had more room. The barking lessened, but he still did it. Whenever he laid down in the recorded videos we had of him, his head would be up and his ears would be back. Our main problem was when he barked, we didn't want him getting the neighbors angry...he has a LOUD bark, especially when he's anxious. We tried the thundershirt. We put it on him, he didn't try to chew it off or get uncomfortable. We recorded him with it on and we left for an hour. While in the shirt, he simply went next to the gate and laid down. After watching the whole video, he didn't bark a SINGLE time. That made us so happy that he felt like he was being hugged, so he didn't bark. The only thing I don't like is, as I said earlier, whenever we leave, we leave him food to work on in his kongs. Since we have had the shirt and we leave him, he seems to lose interest in his food. He just chills out and lays down with no barking. I like that he gets mellow, I guess that's what it's SUPPOSED to do, but for our extremely food-motivated dog to NOT touch his food when we put him in the thundershirt is odd. I don't know, it just seems like he's drugged or something while in the thundershirt. It doesn't hurt him, his personality just gets really mellow which is what you want if you don't want your dog to be anxious during stressful times for them. I would recommend if you are using this shirt for crate training or seperation anxiety, record your pooch while you are gone and see how he reacts when you aren't there. It was just nice to see that this shirt is not JUST for thunderstorms. If the shirt doesn't work, then return it with the money-back guarantee.