purrley, I can totally relate!!! It's scary when the cat's out the window...so to speak! Everynight I open the windows of our house to cool it down. We don't have ac (I never thought I could survive without it, being a native hoosier from Indiana) here in CA, but surprisingly it's rather cool! So, every night...all the windows are opened and the house gets cooled. Now, I'm used to my cats lying on the window sills. We have screens, and it's never been a problem before. Well, one night, I was sitting on the couch watching the telly, when out of nowhere...this white blob of a streak came flying in front of me and straight through the window screen!!!! It took a few seconds to register what just happened, and I turned and looked to see my white cat Marius making a beeline down our front walk! Oh, how scared I was!! Since he's an indoor only cat...I don't have any collar on him or anything. Luckily we retrieved him, but it was a scare. What's really wierd is what triggered this "fly the coop" response?? Never has that happened before. So, if the window had been shut, would he have slammed into the window?? Weird. So, needless to say...we don't open that particular window quite so wide...