Ha ha ha ha ha!!! My Old Rotti Zoey, saw a squirrel on the back deck railing, well she watched it for a while, then all of a sudden she charged at the squirrel! Unfortunately the door was open, but the screen was not!! She hit the screen door HARD!! The metal frame was amngled, and there was a huge imprint where her head had been!! I was laughong so hard, i almost peed myself!!! Needless to say, the squirrell got away, and Zoey wouldnt got through the back door anymore! she always thought the screen was still there! even after we took the damaged one down, and never put a new one up!