Danish stand-up comedian Nikolaj Wulff ( shared this photo of his pet guinea pig getting REALLY excited about finding a piece of carrot. I have the same expression when I run across a slice of cake. Carrot cake, of course. Via I Can Has Cheezburger?
Crates or Boxes provide many benefits to your dog - a place to relax, an environment to learn house-training manners, a place to spend time when people are away, a dining area (especially in a multi-pet household), and a place to call home.