What good boys! But I know that was scary for you. My cats come and go as they please (as long as someone is here to open the door or window for them), but they really choose to stay inside most of time and I am so glad for that. But the dogs worry me in the same way you were worried! 2 of 4 will bolt, and Zipper gets out more than the others. At least we can catch him usually (those boys have to wet everything in sight, you know), but if Honey were to get out, we might never catch her. It has only happened a few times, but each time, I swear it takes 10 years off of my life.