We recently located to a new apartment about 10 mins away from where we used to lived. I expected the transition to be a little rough for Stanley b/c I had heard dogs don't respond well to moving and having their routine/surroundings altered. So I wasn't sure what to expect. So last night was his first night in our new place. He seemed a little unsure but otherwise okay. Well today, we had to crate him while we went shopping. We were gone for a a few hours. When we came home, he seemed like his normal self. Later, our downstairs neighbor came up to introduce herself and also inform us that she had heard Stanley barking pretty much the entire time we were gone. And, it turns out her husband works the night shift so he sleeps during the day. Not good. So I'm not sure what to do. I'm hoping his barking was only b/c it was his first time being alone in the new apt. But what if he's always barked while we were gone and I just never knew it (we never had our neighbors at the previous complex say anything). So what's the best course of action to nip this in the bud? I give him kongs. He's not particularly barky when I'm home with him or even when I leave. How do I stop a behavior that only happens when I'm not there?