"Little m&m say cheese!"

This was the starting of the hole of the family room window screen. Now the hole is as wide as my cat Chance. Because he keeps going thru it. I'm waiting till the end of summer before I fix the screens just in case. She doesn't go to my bedroom window anymore because a month ago I opened it for Chance one morning to go out on to the roof and at the same time she shows up trying to get in. Chanced was not amused. She chattered at him being in the window blocking her way but then he started to look at her as a chew toy and chased her away. Now why doesn't he do that downstairs?