She plays a lot of tug-of-war with the other dogs. We don't take them for walks because at least the other ones get enough exercise from playing. I'll try wearing her out more. Thanks.

Eta: I don't think it's because she's alone. Even when we're with her, if we're not paying attention, she'll destroy something. And after she does, she'll hide under the bed and won't come out. Since she is constantly destroying something, she's under the bed a lot. I think we need to block her out so she doesn't get under there.

It just sucks because at night, she's so sweet and loving. She always curls up next to my H or me to sleep. And she gives kisses and brings toys to us to play. She never destroys things at night.