Hello, My boyfriend used to live in the building next to me, so when my 8 month old 6 pound crate trained puppy couldn't "turn off her switch" and calm down while playing with his dog, I would just bring her back to my apartment, put her in her crate, and she would calm down and sleep until I came home the next morning. My boyfriend recently moved across town, so my dog has been spending a lot of time at his house when I am over there, including spending the night in a similar crate that I have at home. She does NOT have an off switch, no matter how much I let her play, and tire herself out at the dog park. She has a high pitched yelp of a bark, and does this when my boyfriend's 3 year old dog doesn't want to play anymore, OR when I put her in the crate. The only time she is quiet is if they are playing nicely or has a treat. Usually I can put her in the crate for "nap" time and she is happy, but at his place she goes insane. I have tried ignoring her, but after 15-20 minutes of high pitched yelping, we both get super irritated. This morning I left his place, and as soon as she came home she passed out and fell asleep, but she can't seem to calm down at his apartment and stop yelping. I'm sure his dog has something to do with it, but hoping we can work on her behavior. I'm not sure what to do at this point, and am hoping for tips. It's only been a week since he has been at his new place, so I'm guessing that it will take some time to adjust, but do you have any tips? When she is in her crate I have tried sitting in the room with her, sitting outside the room, putting a blanket around the crate so she doesn't have as much anxiety. Any other ideas? Would like to try to avoid the dog bark training collars, if possible. Thanks so much for your help!