Snakes in general are not social. Balls especially like to stay hidden. It sounds to me that your snake is trying to hide to feel secure, which is normal. The angled logs are not very good hides. Any hide that you can easily see into is usually not a good hide for a snake. A good hide is enclosed with only one small door. These are cheap, easy to clean, and offering a secure feeling to your snake.

http://www.reptilebasics.com/hide-boxes