We have two cats and we don't have a cat door so we leave the sliding glass door open so our cats can come and go while not needed us to open the door for them. We had a dog, well we still do, but my mother-in-law has adopted it so we rarely see it. Since then, we have had Racoons come in and tearing through our pantry. We moved the food high now, but still feed the cats in thier bowls. A Racoon came in and I came out and got in its way so it could leave. It went around the house looking for a way out, and I finally got out of its way and shewed it out. Now I have this Black cat coming in. My other two cats howel and spit when it comes in and I shew it out. The cats were gone and it came in looking for food. I tried shewing it out, but it wanted to approach me and acted like it wanted me to pet it and feed it. "I don't want anymore cats". I stomped my feet and shewed it away and shut the sliding glass door. Now I have to open the door every time my two cats want in or out. You know how fickle cats can be, sometimes not sure they want out or not when I open it.