We had a Chocolate Lab that was a destructive beast when I was a kid. She was the most amazing dog, but she was destroyed the house and was good at it.
We went somewhere for the weekend, locked her in the backyard with the garage door open so she could go into the garage. Well, there was a kitty door into the kitchen from the garage, just enough for her to stick her head through and try to chew her way into the house. She chewed the door bigger, but also chewed up the kitchen floor in a nice little radius around the door.
Another time, she went into the bathroom to drink out of the pooper, and she managed to knock the door shut behind her.. and once she realized she was stuck in the bathroom, decided to chew her way out through the door and the wall.
She was a really awesome dog, but man she destroyed a lot of stuff.