Goats on the porch!!??!!

Here is the front porch to our little farmhouse. See the steep stairs going up?? This is the porch I have talked about that we use and love so much after we had it built on a few years ago. We do so many things out here, we BBQ, have parties and just sit and relax. The window to the right is our little sunroom/computer room. That is where I can sit and do some work on computer while looking out over the porch and yard. The other day as I was sitting there, I was startled! I heard a sound I had never heard before. It was loud, and coming my way! I look out on the porch and here is what I found:
Our goats were on the porch! I had not idea they could even climb stairs like that! I have no idea what they wanted to do up there.
You can't see it well here, but Cocoa, the male on the right, has a big, wide belly. When I went to grab him to take him to the barn, he proceeded to "DIVE" off the porch! Yes, he went through one of those narrow slots you see there! He was half way through, and stuck. I had to gradually pull him through the other side, and lift him up, then safely walk down the stairs with him. I think he may have hurt himself terribly if he would have made the leap down. I still have no idea how he acutually fit his body through there!