To continue the saga with Benjamin -- 2 days ago I bought a 24 inch high expen, and set it up in my bedroom with all of his supplies. Things were going better, but from taking all the good advice from some of the very exerienced people on here, I realized that I was still giving him too much space. He was still missing the paper sometimes, and it was too much "freedom" for him to have his bed, food, water, toys, and potty area all available at once. I made it smaller and just put in his crate and the newpapers for pottying, with only a few inches of space in between. I put him in it and watched, and it was hilarious! It was like he was plotting a jailbreak, trying to dig under it and jump over it. Then he settled down a bit and sat in his crate. I took the opportunity to go in the other room and do some stuff on the computer. He started barking and yapping, but I ignored it, then all of a sudden he was right at my side, bouncing up and down wagging his tail! I can't believe that little 9-week old pipsqueak was able to get over a 24 inch enclosure! I mean I knew he would outgrow it soon and I would need a taller one, in fact that was what I was looking for online when he busted out! I put him back in just so I could finish up what I was doing, including this post, figuring I at least had a few minutes before he could get out, but he did it faster the second time. Then I popped him back in there in his crate, with the door closed. He is mad, and lettimg me know it. Jeesh, what a handful! Don't get me wrong, I love the little guy with all my heart. He has so much spirit and energy and determination, and I know it will serve him well in life, but seriously...
So, until I get the 30 inch one I just ordered -- now I think maybe I should have gotten 36 inches, but we'll see -- I will have to lock him in the bathroom if I have to run to the grocery store or something.
Here is a picture of him plotting his jailbreak.