Kirby, my sweet sweet boy, came to the rescue of my poor Baby Kitty.  I heard the cat door in the kitchen and didn't really think anything of it.  Kirby ran in the kitchen to see what was up, and gave a little "Hey! Come see this!" bark, which is unusual, so I went to investigate.  Baby Kitty had tried to get out of the cat door, which had been set to only open in one direction, so his tail got caught.  Kirby has always been a good boy, but I had no idea he would have the cat's back like…