My neighbors have three small dogs, and they have nearly gotten into our house through our pet door on several occasions. They love to chase my cat, and when she runs inside they try and follow her. Naturally I wanted to protect my cat, so when I was able to have the Pet Porte Smart Flap installed, I jumped at the chance. It will offer my cat a much higher level of freedom and security while keeping other animals out. Now I can go to work each day and know that my cat will remain safe while I am gone. This gives me incredible peace of mind!