Doggy Door!

The past few weeks Marques has kind of been intrigued about our doggy door, I think he even went through it a couple of times. Today however I am having a hard time keeping him from going through it. As soon as he gets to the outside, he takes off running. When I bring him back inside, he goes straight for the door. I finally put the cover over it, which caused him to throw a small tantrum. Below are some pictures, so that you can see exactly how it's done!! I love this little guy!!
Look at Crosby in the second picture..priceless!