Jasper's mom, I know what you mean about not underestimating what a cat can do. I had trapped a very ill feral mom and her four kittens. The plan was to tame and adopt the kittens and put her down. Even as ill as she was, she jumped 7 feet to the bathroom window and jumped clear through it - she didn't even break the glass but the entire window came out of the frame! She was so ill that she died the next day (she was found back at her old home) but she still powerful enough to take the window out.